Sources
Authors
Keywords
Fairy Pieces
Statistic
FAQ
Acknowledgement
New Comments
today
since yesterday
since last week
since last 4 weeks
New Problems
since last week
PDB Account
Login
Henri Nouguier 5465 Die Schwalbe 98 04/1986 (10) diagrammes 92 01-03/1990  (0+11) wK, wT, wL, 5wBB und sK, 2sBB sind auf den bezeichneten Feldern so aufzustellen, daß Matt durch einen ep-Schlag möglich ist. | |
| hans: Kf6 Te5 Lf5 d4 d5 d6 g5 h6 - Kh5 h4 f7 1. Ld3 Kg4 2. Lb5 Kh5 3. Kg7 Kg4 4. Ld7+ Kh5 5. Le6 f5 6. gxf6ep.# It don't say how many moves or if it's a H#. But in this position there's a possibility. (2010-6-28) Henrik Juel: Mate (by an ep capture) usually means #1, so my solution is Kh5 Te5 Lh4 Pd4,d5,d6,f5,h6 - Kf6 Pf7,g5 Last move was g7-g5, so 1.fxg6ep# is permitted. (1.Lxg5 also mates). In the symmetrical position (Kd5 Tg5 Ld4 Pd6,f5,h4,h5,h6 - Kf6 Pe5,f7) last move could be Ke7-f6. (2010-6-29) comment | |
Keywords: En passant, Add pieces Genre: Retro Input: Gerd Wilts, 1995-6-3 Last update: Gerd Wilts, 2002-10-12 more... |
Andrej N. Frolkin 5760 Die Schwalbe 103 02/1987 U.S. Problem Bulletin 98 11-12/1994 3. Preis  (15+10) Welches waren die letzten 34 Einzelzüge?      | R: 1. d4-d3+ Kc1-c2 2. d5-d4 Lc2-d1 3. d6-d5 Le4-c2 4. d7-d6 Lf3xBe4 5. e5-e4 Lh2-g1 6. e6-e5 Tg1-g2 7. e7-e6 Lg2xBf3 8. f4-f3 Lf1-g2 9. f5-f4 g2-g3 10. f6-f5 Lg3-h2 11. f7-f6 Lh4xBg3 12. g4-g3 Td6-c6 13. g5-g4 Td1-d6 14. g6-g5 Lg5xBh4 15. h5-h4 0-0-0 16. h6-h5 Lc1-g5 17. h7-h6 d2xSc3 |
| more ... comment | |
Keywords: Last Moves? (34), Castling (wg) Genre: Retro Input: Gerd Wilts, 1995-6-3 Last update: Gerd Wilts, 2010-6-27 more... |
Andrej N. Frolkin Andrej Kornilow 5820 Die Schwalbe 104 04/1987 4. Lob  (10+12) Löse die Stellung auf! | |
| hans: -1 exd8S Sd8 -2 Kb8 Sb7 -3 Ka8 Sc5 -4 Kb8 Se4 -5 Ka8 Sg3 -6 Kb8 f1=S -7 Kb7 f2 -8 Ka8 gxLf3 -9 Lf3 hxLg4 -10 Lb7 d4 -11 c8=L b4 -12 c7 b5 -13 bxLc6 Lc6 -14 b5 Lb7 -15 Lg4 La8 -16 Lf3 Lb7 -17 Le4 La8 -18 Ld3 Lb7 -19 La6 La8 -20 c8=L Lb7 -21 c7 cxd6 -22 Dd6 La8 -23 Te6 e5 (4 minor-promotions, but there is no force for wK has plenty tempo-moves. Do I miss something?) (2010-6-14) Henrik Juel: I think you got the content right, hans; but your notation is non-standard. I prefer something like: -1.e7xSd8=S Sb7 ... -5.Kb5 Sf1 -6.Kc4 S=f2 -7.Kd3 f3 -8.Kd2 g4xLf3 -9.Lb7 h5xLg4 -10.Lc8 d5 -11.L=c7 b5 -12.c6 b6 -13.b5xDTLc6, unpromote Lg4 on c8, retract c7xDSd6 etc. Ceriani-Frolkin theme: 3 uncaptured officers unpromote. Gerd prefers full notation and indicates retroplay with an R, e.g.: R: 1. e7xSd8=S Sb7-c8 2. Ka8-b8 Sc5-b7 3. Kb7-a8 Se4-c5+ 4. Ka6-b7 Sg3-e4 5. Kb5-a6 Sf1-g3 6. Kc4-b5 f2-f1=S 7. Kd3-c4 f3-f2 8. Kd2-d3 g4xLf3 9. Lb7-f3 h5xLg4 10. Lc8-b7 d5-d4 11. c7-c8=L b5-b4 12. c6-c7 b6-b5 13.b5xTc6 etc. (2010-6-18) comment | |
Keywords: Promotion (S), Promotions in the retro play Genre: Retro Input: Gerd Wilts, 1995-6-3 Last update: Gerd Wilts, 2006-10-17 more... |
Jasper van Atten 5953 Die Schwalbe 106 08/1987  (16+15) cooked BP in 19,0 | 1. h4 b6 2. Th3 Lb7 3. Ta3 Le4 4. Txa7 Sc6 5. Tb7 Ta5 6. a4 Th5 7. a5 g5 8. a6 Lg7 9. a7 Le5 10. a8=T Sf6 11. T8a3 Da8 12. Th3 Da2 13. Th1 Lh2 14. g3 e5 15. Lh3 Ke7 16. Le6 Ta8 17. Tb8 Ta3 18. Ta8 Te3 19. Lb3 Sa5 Cook: 1. h4 b6 2. Th3 Lb7 3. Ta3 Le4 4. Txa7 Sc6 5. Tb7 Ta5 6. a4 Th5 7. a5 g5 8. a6 e6 9. a7 Ld6 10. a8=T Ke7 11. T8a3 Da8 12. Th3 Da2 13. Th1 Lh2 14. g3 Sf6 15. Lh3 e5 16. Le6 Ta8 17. Tb8 Ta3 18. Ta8 Te3 19. Lb3 Sa5 |
| paul: See P0000154 (2010-8-4) comment | |
Keywords: Unique Proof Game, Non-standard material, Interchange Genre: Retro Input: Gerd Wilts, 1995-6-3 Last update: Gerd Wilts, 2004-11-13 more... |
Leonid N. Borodatow 6685 Die Schwalbe 118 08/1989  (15+10) Löse die Stellung auf! | |
| Nikolai Beluhov: Unplaying 1. Qh3# Kf6 2. Rg7+ Kg6 3. Rc7+ Kf6 4. Rg7:Pc7+ Kg6 5. Rd7+ Kf6 6. Rg7:Pd7+ Kg6 7. Re7+ Kf6 8. Rg7:Pe7+ Ke6 9. Rf5+ Kd6 10. B~f4+... seems to release the position. Three black pawns are uncaptured on their home squares. (2010-7-30) comment | |
Keywords: Non-standard material, Promotion (LLLL) Genre: Retro Input: Gerd Wilts, 1995-6-3 Last update: Gerd Wilts, 2004-8-10 more... |
Jasper van Atten 6869 Die Schwalbe 121 02/1990 73 Shortest Proof Games 11/1991 3. ehrende Erwähnung  (15+15) C+ BP in 20,0 | 1. h4 b6 2. Th3 Lb7 3. Ta3 Le4 4. Txa7 Sc6 5. Tb7 Ta5 6. a4 Th5 7. a5 g5 8. a6 Lg7 9. a7 Le5 10. a8=T Sf6 11. T8a3 Da8 12. Th3 Da2 13. Th1 Lh2 14. g3 Se5 15. Lh3 c6 16. Le6 fxe6 17. Sh3 Kf7 18. Sf4 Ta8 19. Tb8 Ta3 20. Ta8 Se8 Platzwechsel von wTh1 und UWTa8. |
| Silvio Baier: C+ (Natch 2.4) (2009-7-16) paul: Correction of P0000082 (2010-8-4) comment | |
Keywords: Unique Proof Game, Non-standard material, Interchange, Promotion (T) Genre: Retro Computer test: Natch 2.4 Input: Gerd Wilts, 1995-6-3 Last update: Gerd Wilts, 2009-7-16 more... |
Andrej N. Frolkin 7763v Die Schwalbe 135 06/1992  (13+13) #1 (wer?) | So war's gedacht: Retro: 1. Td8-e8 Sd5-c3 ... 4. Te8-d8 Sd8-e6 5. f2xSe3! (f3xSe4? und der S kommt nicht zum richtigen Zeitpunkt nach d8) Sb7-d8 ... 9. Te8-d8 Sd8-e6 10. e3-e4 Kc8-c7 11. Sd5-b6+ Kc7-c8 ... 14. Sh8-g6 Kc8-c7 15. h7-h8=S Kc7-c8 ... 19. h3-h4 Kc7-c8 20. g2xBh3! Kc8-c7 21. Kb6-a7 h4-h3 22. Da7-a6 h5-h4 23. La6-b5 b5xSc4+ 23. S..-c4; also nicht 1. Tc8#? sondern 1. ... Sxb5#! Wie aber HHS und GW zeigten, geht es auch mit Weiß am Zuge: 1. ... Se2-c3 2. f3xSe4 Sg5-e4 ... 5. Sc8-b6 Sb7-d8 ... 8. Sb6-c8 Sd8-e6 9. f2-f3! Kc8-c7 10. Sd5-b6+ Kc7-c8 11. Sf4-d5+ Kc8-c7 ... 13. Sh8-g6 Kc8-c7 ... 19. g2xBh3 Kc8-c7 20. Kb6-a7 h4-h3 21. Da7-a6 h5-h4 22. La6-b5 b5xSc4 etc. 5L. |
| Mario Richter: Diagrammfehler? Die Stellung ist illegal - illegales Schach durch sSc8 - und paßt auch nicht zum Löserkommentar. (2010-7-10) comment | |
Keywords: Whose move?, Promotion (S) Genre: Retro Input: Gerd Wilts, 1995-6-3 Last update: Gerd Wilts, 2002-10-12 more... |
Thomas Volet 4224 Die Schwalbe 79 02/1983 2. Preis  (13+9) Welches war der erste Bauernzug auf der a-Linie? | Verführung: ... a7-a8=T, ..., a2-a3, ..., Kb2xBa3 a4-a3+ Kc1-b2 Df2-g3 Kd1-c1 Dg3-f2 Lf2-e1 a5-a4 Ke1-d1 a6-a5 Kf1-e1 a7-a6 Le1-f2 Dg4-g3 Kf2-f1+ Dh5-g4 - aber retropatt. R: 1.Kf8-g8 Df2-g3 2.Ke7-f8 Dg3-f2 3.Kd6-e7 Df2-g3 4.Kc5-d6 Dg3-f2 5.Kb4-c5 Df2-g3 6.Td8-d3 Dg3-f2 7.Ta8-d8 Df2-g3 8.a7-a8=T Dg3-f2 9.a6-a7 Df2-g3 10.a5-a6 Dg3-f2 11.a4-a5 Df2-g3 12.a3-a4 Dg3-f2 13.Ka4-b4 Df2-g3 14.Kb4xBa4 Dg3-f2 15.Kc3-b4 Df2-g3 16.Kb2-c3 Dg3-f2 17.Kc1-b2 Df2-g3 18.Kd1-c1 Dg3-f2 19.Lf2-e1 a5-a4 20.Ke1-d1 a6-a5 21.Kf1-e1 a7-a6 22.Le1-f2 Dg4-g3 23.Kf2-f1 Dh5-g4 24.Dh6-g6 Tg6-f6 25.a2-a3 f6xTg5; weiter ... f2xLe3, sT->h8, sL->f8, dann e7-e6. Erster Bauernzug auf der a-Linie war also wBa2-a3! |
| hans: Dont't think this solution is right. My idea: 1..... Qf2-g3 2. Rd8-d3 Qg3-f2 3. Ra8-d8 Qf2-g3 4. a7-a8R Qg3-f2 5. a6-a7 Qf2-g3 6. a5-a6 Qg3-f2 7. a4-a5 Qf2-g3 8. a3-a4 Qg3-f2 9. Kf8-g8 Qf2-g3 10. Ke7-f8 Qg3-f2 11. Kd6-e7 Qf2-g3+ 12. Kc5-d6 Qg3-f2 13. Kb5-c5 Qf2-g3 14. Ka5-b5 Qg3-f2 15. Ka4-a5 Qf2-g3 16. Kb4xa4 Qg3-f2 17. Kc3-b4 Qf2-g3 18. Kb2-c3 Qg3-f2 19. Kc1-b2 Qf2-g3 20. Kd1-c1 Qg3-f2 21. Bf2-e1 a5-a4 22. Ke1-d1 a6-a5 23. Kf1-e1 a7-a6 24. Be1-f2 Qg4-g3 25. Kf2-f1+ Qh5-g4 26. Qh6-g6 Rg6-f6 27. a2-a3! (2010-4-23) Henrik Juel: I agree with Hans. The retroplay continues with 27... f6xRg5 opening the cage; the officers are extracted (except the black king), and the next uncapture is f2xBe3 allowing retraction of e7-e6, after [Rh8] and [Bf8] have come home. So the answer to the stipulation question is a2-a3, not a7-a6. (2010-4-23) Mario Richter: Lösungsangabe im Sinne von Hans und Henrik korrigiert. (2010-4-23) Thomas Volet: Yes. I never looked at the database solution, but as I recall, the solution was a2-a3. (2010-8-10) comment | |
Keywords: First Move? Genre: Retro Input: Gerd Wilts, 1995-6-3 Last update: Mario Richter, 2010-4-23 more... |
Boris Lurje Nikita Plaksin 4834 Die Schwalbe 88 08/1984 (12) diagrammes 100 01-03/1992 3. Preis  (9+13) r#1 | 1. ... a1=D# R: 1. Lg8-h7 e6xDd5 2. De5-d5+ f5xDe4 3. De3-e4+ g4xDf3 4. Dd1-f3+ |
| Mario Richter: Does somebody know the solution? The only legal black last move seems to be e6xQd5, but how does the retroplay continue? (2010-8-17) Henrik Juel: Before we start looking for the retroplay, we might entertain the notion that the diagram or stipulation is wrong; I base this suspicion on the fact that the forward stipulation (with White to move) has lots of solutions. (2010-8-17) Gerd Wilts: Diagram is correct, original stipulation was "Reflexmatt (seit PAS) in 1 Zug". (2010-8-17) comment | |
Keywords: Whose move? Genre: Retro Input: Gerd Wilts, 1995-6-3 Last update: Gerd Wilts, 2010-8-17 more... |
Maurice Edwin MacDowell Jago 3212 Die Schwalbe 64 08/1980  (13+13) 1) Wer gewinnt? 2) Konnte Schwarz rochieren? | |
| Mario Richter: 1) Weiß gewinnt, denn er hat keinen letzten Zug und darf deshalb beginnen (am einfachsten wohl mit 1.axb8=S+ ~ 2.Txh3). 2) Schwarz konnte nicht rochieren. Die Stellung läßt sich nur auflösen durch -i.Kg5 g7xh6+ Zu diesem Zeitpunkt muß der sLf8 bereits auf seinem PAS-Feld stehen, eine zuvor zurückgenommene Rochade würde aber sK und sTh8 unbeweglich und damit Schwarz retropatt machen. (c7-c6?, sD kommt nicht nach Hause, a6-a5 versperrt dem sTh2 die Heimkehr, der sT muß deshalb für Tempozüge retrobeweglich bleiben). (2010-5-29) Gerald Ettl: Ist die Stellung nicht illegal, denn die S/O Ecke kann nur aufgeloest werden wenn Kg5-h5 g7xh6+ geschehen ist. Dann aber kommt der sTh2 nicht nach h8. (2010-7-11) Gerald Ettl: Beim 2. Anlauf habe ich es jetzt gesehen, ja natuerlich der sTb8 kann zuvor nach h8. Der Rest ist dann klar. (2010-7-11) Gerald Ettl: Weiss konnte zuletzt nicht R: 1.bxL(S)a7? im naechsten Zug haette der wB Probleme sich zu bewegen. R: 1.Kg5a6 b6xLa7 2.Kc4b5 b5b6 3.Kc5xLc4 mit leichter Aufloesung. mit Rochade ein Versuch: sTf8, sKg8 dann 0-0, sLf8, Kg5-h5 g7xSh6 und retropatt. a) Weiss gewinnt b) Schwarz hat nicht rochiert. Die Frage nach der Rochade macht einen Sinn in diesem Problem, aber die a) Frage koennte man weglassen. (GE) (2010-7-11) comment | |
Keywords: Castling Genre: Retro Input: Gerd Wilts, 1995-6-3 Last update: Gerd Wilts, 2004-10-25 more... |
Lothar Finzer 3324 Die Schwalbe 66 12/1980  (10+11) h#3 | |
| Sally: Der letzte schwarze Zug muss Weiss eine Rückzumöglichkeit einräümen. Als Lc1 x Db2!,weil sich vor Lc1 x Tb2 die SW - Ecke nicht entwirren läßt.Diese 2. wD kann nur durch Umwandlung des wB auf c8/d8/e8/f8/g8 entstanden sein!,wobei der wB oder die UW-D durch das Schachgebot den sK zum ziehen zwang.Bei Bc8D ist der La2 ein UW-L und muß auf dem Weg nach c8 denw Otri Läufer geschlagen haben, was den wBzum Weg über das Feld d7 zwingt! 1. - Kxa2?,2.0-0 -Bexd3,3. Te8 - Dxe8#, ist also illegal! 1. - Kxa2, 2. Kf8/Kf7(Dual)-Bexd3, 3.Te8- De8# (2010-6-19) Mario Richter: Der sLa2 ist auf jeden Fall ein UW-L. Die nach dem einzig möglichen Rückzug Lc1xDb2 auf dem Brett stehende, aus dem wBh2 hervorgegangene wUW-D könnte ohne Rochadezerstörung nur auf c8 entstanden sein. Dazu hätte der wBh2 auf seinem Wege nach c8 aber auch den Original-sLc8 geschlagen haben müssen, und der Weg dieses wB hätte somit zwingend über d7 geführt, was auch Rochadeverlust für Schwarz bedeutet. Lösung somit: 1. - Kxa2, 2. Kf8/Kf7(Dual)-Bexd3, 3.Kg8 De8# (2010-6-21) comment | |
Keywords: Castling (sk), Cant Castler Genre: h#, Retro Input: Gerd Wilts, 1995-6-3 Last update: Mario Richter, 2010-6-21 more... |
Nils Adrian Bakke 131 Die Schwalbe 3 02/1970  (15+2) #1 Wieviele Lösungen? | |
| Mario Richter: Stellung ist illegal - mehr Umwandlungsfiguren, als wBB fehlen. (2010-7-10) Henrik Juel: The idea is probably to legalize the position by removing one man, then #1. There seems to be 10 solutions: remove Tb4, Td4, Lf1, or any white pawn. (In such a joke problem, pointing out a dual is ridiculous, but still: two mates after removal of Pc3). (2010-7-10) comment | |
Keywords: Non-standard material, illegal position Genre: Retro Input: Gerd Wilts, 1995-6-3 Last update: Mario Richter, 2010-7-10 more... |
Vojko Bartolovic Rudolf Buljan (7,71) problem 45-48 11/1957 5. Preis  (3+10) Welches war der letzte Zug? | R: 1. Df8xDd8 |
| Sally: (Df8 x Dd8! sDe8 -d8+ wDh6 - f8 ... wKh6 - c7!) Df8 x Td8? ist illegal (der wK kmmtnicht am sT vorbei) Nr. 87 eigenartige S. Probleme (W. Keym). (2010-8-5) comment | |
Keywords: Type A, Last Move? (DxD) Genre: Retro Input: Gerd Wilts, 1995-6-3 |
Vojko Bartolovic Zdravko Maslar (35,310) problem 45-48 11/1957 6. Lob  (2+10) C+ Welche war der letzte Zug? Schwarz ist am Zug | R: 1. Bh7xDg8=S |
| Sally: Bh7 x Dg8 wird Springer ! Nr 94 eigenartige S. Prpbleme (W. Keym) (2010-8-5) comment | |
Keywords: Last Move? (BxD=S), Type B, Promotion (S), Type A Genre: Retro Computer test: RSP 1.2 Input: Gerd Wilts, 1995-6-3 Last update: Mario Richter, 2010-8-5 more... |
André Simonet 23 Europe Echecs 18 02/1960 G. Leon-Martin gewidmet  (16+8) Ergänze den schwarzen König so, daß er matt ist! | |
| hans: sKh4! R: -1. h5xg6ep. g7-g5 -2. Tf6-h6+ sKc4? R: -1. c5xd6ep. d7-d5 -2. Lf5-e6+ but now Lc8 can't go back! (2010-6-21) Mario Richter: Other tries, which fail due to the pawn capture balance: +bKd8 and +bKd4. (2010-6-26) Mario Richter: +sKb1?, but 0-0 as White's last move is illegal, since bPe7 promoted on e1. (2010-6-26) comment | |
Keywords: En passant, Castling, Add pieces, Cant Castler Genre: Retro Input: Gerd Wilts, 1995-6-3 Last update: Mario Richter, 2010-6-26 more... |
Luigi Ceriani (2) Europe Echecs 18 02/1960 3 La Genesi delle Posizioni 1961  (12+12) cooked #2 (wer?). Weiß zieht an. | Wenn Schwarz rochieren kann, war der letzte Zug d7-d5 und Weiß kann ep schlagen: 1. cxd6ep ... 2. d7#. Wenn Schwarz nicht rochieren kann, war der letzte Zug Th7-h8 und Schwarz gewinnt mit 1. ... Lxd2 2. ... Lf4# (1. Sd2~ Lf4#) Cook: 1. gxh8=S Lxd2 2. Sxf7/Sg6 und kein Matt. |
| Urdruck im Artikel "Les positions multiples" von L. Ceriani, Europe Echecs 1960. Autor: "Eine solche Stellung (ist sie neu?) könnte eine elegante, aber nutzlose Diskussion entstehen lassen: nämlich ob Schwarz, der gemäß der Regel 2 [die Rochadekonvention] das Recht zu rochieren hat, auf dieses Recht verzichten darf, um dem Matt zu entgehen? Aber dann würde Weiß verlieren? Die Frage ist aber im Gegenteil sehr einfach, wenn wir daran denken, dass die gegebene Stellung zwei Komponenten hat, je nachdem, ob der letzte Zug von Schwarz d7-d5 war oder nicht." hans: Don't understand German or Frence, but I do know that d7-d5 don't have to be the last move. (Th7-h8) (2010-6-21) Henrik Juel: The stipulation means: #2 (who?). White to move. The motto means: The multiple positions. Maybe the intention was: If last move was d7-d5, White mates in 2 by 1.cxd6ep any 2.d7# If last move was Th7-h8, Black mates in 2 by 1.any Lxd2 2.any Lf4#; but 1.gxh8S Lxd2 2.Sxf7/Sxg6 prevents the mate. (2010-6-21) comment | |
Keywords: En passant, Retro variants (RV, pRA), Castling (sk) Genre: Retro Input: Gerd Wilts, 1995-6-3 Last update: Gerd Wilts, 2010-6-22 more... |
Filip S. Bondarenko 30 Europe Echecs 22 06/1960  (12+11) Welches waren die letzten zwei Einzelzüge? Schwarz am Zug. | |
| hans: R: -1 e2xLf3 e4xSd3 -2 Sb4-d3 d5xSe4 -3 Sc3-e4 (2010-6-21) comment | |
Keywords: Last Moves? (2) Genre: Retro Input: Gerd Wilts, 1995-6-3 |
Georges Glaeser 31v Europe Echecs 22 06/1960  (13+11) Löse die Stellung auf! | |
| hans: R: -1 Kh7-g8 Tf8-f7 (captures w fxSexSdxDcxTb8=L and KxLf8 s hxg cxSb6 and Lc1 on homesquare (2010-6-21) comment | |
Genre: Retro Input: Gerd Wilts, 1995-6-3 |
Milos Marysko 34 Europe Echecs 24 08/1960  (11+14) a) s#2 a) Ist die Stellung legal? | |
| hans: 1. g5-g6 (2. Dd4xf4+ Lh6xf4#) 1. ..... Td6xd5 2. g2-g4+ f4xg3ep.# 1. ..... c6xd5 2. Dd4xd5+ Td6xd5# 1. ..... Pd1-e3 2.Pd5xe3+ f4xe3# Die stellung ist legal captures s bxc dxe exf gxf hxg w bxa fxg promotions a2, b2 and d2 (2010-6-21) Mario Richter: white capture bxa is not forced (2010-6-26) comment | |
Genre: Retro Input: Gerd Wilts, 1995-6-3 |
Leon Loewenton 45 Europe Echecs 28 12/1960  (13+11) Welches war der erste Zug des Lc1 und welches der letzte Zug der Partie? | |
| hans: R: -1. Td1-h1 Kh1-g2 -2. Se1-d3+ Kg2-h1 -3. Sf3-e1+ Kh1-g2 -4. Sg1-f3+ Kg2-h1 now retract Da3-a4-b5 Kb2-a3-a4 and unpromote Lc1 on f8-f6?? -17. g5xSf6 Sd5-f6 -18. Sf3-g1 Sf4-d5 -19. Th1-d1 Sd3-f4 -20. Sg1-f3 Kf1-g2 -21. Tb2-b1+ Ke1-f1 -22. Dc6-b5 Kd1-e1 -23. Db5-c6 Se1-d3 -24. Sf3-g1 f7xLg6 -24. Tg1-h1 Sd3-e1 -25. Tg4-g1+ Ke1-d1 -26. Sd4-f3+ Kf1-e1 -27. Tf4-g4 Kg2-f1 -28. Tb1-b2 Sb4-d3 -29 Th1-b1 Sd3-b4 -30. Sf3-d4 Sb4-d3 -31. Sg1-f3 and sK to a3 and after retracting b2xc3 he walks out. Lc1 is Pg2 so the first move is Lf8-e7 (The original wLc1 is captured on his homesquare) (2010-6-22) comment | |
Keywords: Last Move?, First Move? Genre: Retro Input: Gerd Wilts, 1995-6-3 |
Leon Loewenton 64 Europe Echecs 38 10/1961 787 Thèmes-64 10-12/1961 (7) diagrammes 112 01-03/1995  (15+14) h#2 | |
| Originalquelle? hans: Counting problem 1. Kd8 Se5 2. Te8 Sxf7# !! 1. 0-0 Sd5 2. Sh8 Sxe7# ?? Black needs a tempo to get on move, and the only piece to do that is Th8, so 0-0 is illegal. (2010-6-20) Mario Richter: The term usually used to describe this kind of problems is "Parity problem". The bRh8 might have been on h8 all the time, since the tempo move might also have been made by the black Queen, but in this case, the bK must have already moved, thereby losing the right to castle too.. (2010-6-21) comment | |
Keywords: Castling (sk), Parity Argument, Cant Castler Genre: h#, Retro Input: Gerd Wilts, 1995-6-3 Last update: Mario Richter, 2010-6-21 more... |
Michail N. Popov 79 Europe Echecs 42 06/1962  (12+9) #1 (wer?) | |
| hans: 1. Lb8-a7# R: -1. Lh6xDg5 Df6-g5 etc. (2010-6-22) comment | |
Keywords: Whose move? Genre: Retro Input: Gerd Wilts, 1995-6-3 |
Leon Loewenton 95 Europe Echecs 51 03/1963  (2+12) Ergänze einen sT, um ein h#2 zu erhalten. 2 Lösungen | |
| hans: 1) +Th8 1. 0-0-0 Ta1 2. Td7 Ta8# (Rochade legal) 2) +Td7 1. Kd8 Ta1 2. Kc8 Txa8# (Rochade illegal) (2010-6-24) comment | |
Keywords: Cant Castler, Castling (sg) Genre: Retro Input: Gerd Wilts, 1995-6-3 |
Paul Vatarescu 99 Europe Echecs 53 05/1963  (15+10) #1 | |
| hans: 1. dxc6ep.# R: -1. ... c7-c5 -2 Td2-d3 e7-e5 -3 Dh2xSg3+ 1. dxe6ep.# R: -1. ... e7-e5 -2 Dh2xg3+ c7-c5 -3 Td2-d3 (2010-6-22) Mario Richter: e.p. keys are not justified, Black's last move might even have been h2-h1=N. (2010-6-26) comment | |
Keywords: En passant Genre: Retro Input: Gerd Wilts, 1995-6-3 |
Leon Loewenton 103 Europe Echecs 55-56 07/1963  (13+12) Weiß macht seinen 29. Zug und setzt in 2 Zügen matt. | |
| hans: 1. Sc3 Sf6 2. Sd5 Se4 3. b3 Sc3 4. b4 Sb1 5. b5 a6 6. b6 Ta7 7. bxa7 Sc6 8. a8=T Sb4 9. Ta7 Sd3+ 10. cxd3 Sa3 11. Sh3 Sb1 12. Sg5 Sa3 13. Se6 Sb1 14. Sxd8 Sa3 15. Se6 Sb1 16. Sxf8 Sa3 17. Sg6 Sb1 18. g3 Sa3 19. Lh3 Sb1 20. Le6 Sa3 21. Tb1 fxe6 22. Tb4 hxg6 23. Tf4 g5 24. g4 gxf4 25. g5 Sb1 26. g6 Tf8 27. Db3 Tg8 28. Dc2 Th8 29. Dxc7 any 30. Dxc8# A parity problem. The White capture can only be a sS and to get it to d3 needs an uneven number of moves, so Black can't provide the 0-0. (It can be done shorter than 29 moves!) (2010-6-22) comment | |
Keywords: Cant Castler, Castling (wksk) Genre: Retro Input: Gerd Wilts, 1995-6-3 |
Eliahu Fasher 104 Europe Echecs 55/56 07/1963  (13+8) cooked h#2 | 1) 1. Sg4 0-0+ 2. Kd2 Dxd3# NL: 1. dxc2 Dxc3 2. Sf1 Da1# |
| hans: The solution is illegal for White can't provide 0-0! Le6 is pawn h or fxg2xf1/h1 and for those 2 captures we need s and t. The NL: is correct but the problem is eventhough incorrect for there is not a forcing second black move. (2010-6-22) comment | |
Keywords: Castling (wk) Genre: h#, Retro Input: Gerd Wilts, 1995-6-3 Last update: Gerd Wilts, 2002-6-9 more... |
Luigi Ceriani 105 Europe Echecs 55-56 07/1963  (12+14) Wo wurde der weiße Damenläufer geschlagen? | |
| hans: R: -1. ?? g5xLf4+ -2. Le3-f4 b4-b3 -3. La7-e3 b5-b4 -4. Lb8-a7 b6-b5 -5. b7-b8=L a7-a6 -6 a6xTb7 Tb8-b7 -7 a5-a6 Ta8-b8 -8 Kf2-g3 Tb8-a8 -9 g3-g4 g4xLh3? unpromote Lh3 on c8 and retract pawn to c5?.. then c6xLd5 opens the cage. wDL is captured in an early state on g5 (Ceriani-Frolkin theme LL) There are many Ceriani problems unsolved. P0001162, P0001163, P0001188, and P0001236 have all the same idea, I think, promotion a-pawn after a shield on c7 but it?s hard to provide stalemate. (2010-6-22) comment | |
Keywords: Where has piece x been captured? Genre: Retro Input: Gerd Wilts, 1995-6-3 |
Luigi Ceriani 123 Europe Echecs 72 01/1965 E. Rauly gewidmet  (14+12) Orthorekonstruktion, Weiß am Zug. | |
| Mario Richter: Shortest solution in 28.5 moves. One of the many possible games: 1.Qc8 Bb8 2.Ng3 Ba7 3.Nf1 Bb8 4.Ne3 Ba7 5.Nd5 Ng5 6.Rf6 Ne6 7.Qb8 Ne4 8.Qc8 Nc3 9.Qb8 Na2 10.Qc8 Nb4 11.Nc3+ Nd5 12.Ne4 Bb8 13.Nd6 Ba7 14.Qb8 Nd4 15.Nb7+ Ne6 16.Qa8 Bb8 17.Be4 Ba7 18.Qc8 Bb8 19.Bf3 Ba7 20.Nd6 Ng5 21.Qb8 Ne4 22.Qc8 Nec3 23.Qb8 Na4 24.Qc8 Nab6 25.Qb8 Nc8 26.Ne4+ Nd6 27.Re6 Nc3 28.Nf2+ Nce4 29.Nh1 (2010-2-9) Paulo Roque: . Illegal Position (8 white pawns captures, but only 4 missing black pieces) (2010-6-24) comment | |
Keywords: Orthorekonstruktion Genre: Retro Input: Gerd Wilts, 1995-6-3 |
Paul Vatarescu 126 Europe Echecs 74 03/1965  (12+16) #1 (wer?) | |
| hans: 1. ?.. Dc2xd3#! (1. Sb5xa3?) R: -1 Kd4-e4 Sg3-h1 -2. Sc5-d3 Df5-c2 -3 Kc4-d4 Lc2-d1 -4 Kd4-c4 Le4-c2 -5 Kc4-d4 Sd3-c1 -6 Kd4-c4 Kc2-b1 -7 Kc4-d4 Tb1-e1 -8 Kd4-c4 Kd1-c2 -9 c2-c3 etc. (2010-6-23) comment | |
Keywords: Whose move? Genre: Retro Input: Gerd Wilts, 1995-6-3 |
Paul Vatarescu 130 Europe Echecs 76 04/1965  (10+11) a) Darf Weiß rochieren? 2) Welches war der erste Zug des Lh7? | |
| hans: a) Yes. 2) Lg8-h7 PAS: 1. Sa3 Sa6 2. Sc4 Sc5 3. Sa5 Sb3 4. Sc6 bxc6 5. Tb1 Sa1 6. Sh3 Tb8 7. Sf4 Tb3 8. Sh5 Th3 9. gxh3 La6 10. Lg2 Lc4 11. Le4 Lb3 12. cxb3 Sf6 13. Dc2 Sd5 14. Dc3 Db8 15. De5 Db6 16. Lc2 Dc5 17. Ld1 Sb6 18. Sf6+ gxf6 19. d4 fxe5 20. dxc5 Tg8 21. Bd2 Tg3 22. Tc1 Lh6 23. Tc4 Tc3 24. Td4 Tc1 25. Lc3 Tb1 26. cxb6 exd4 27. f4 dxc3 28. f5 c2 29. f6 Lg7 30. fxg7 c1=S 31. g8=L Kf8 32. Lc2 Kg7 33. Lg6 hxg6 34. Lh7 Kh8 (2010-6-23) comment | |
Keywords: Castling (wk), First Move? Genre: Retro Input: Gerd Wilts, 1995-6-3 |
Drago Biscan 137 Europe Echecs 78 06/1965  (11+15) Wer ist am Zug? | |
| hans: Schwarz ist am Zug! R: -1. Sa8-b6 Sb5-d6 -2. a7-a8=S Sa3-b5 -3. a6-a7 Sb1-a3 -4 a5-a6 b2-b1=S -5. a4-a5 b3-b2 -6. a3-a4 a4xSb3 -7 Sc1-b3 a5-a4 -8 Se2-c1 a5-a6 -9 Sg3-e2 a7-a6 -10. Sh5-g3 Dh8-g7 -11. Sg7-h5+ Sd6-f7 -12. a2-a3! Tf8-f6 -13. Tf6-g6 Lh5-e8 -14. Tg6-f6 f7xLe6 opens the cage! (2010-6-24) comment | |
Keywords: Whose move? Genre: Retro Input: Gerd Wilts, 1995-6-3 |
Luigi Ceriani 144 Europe Echecs 84 01/1965 Spezialpreis  (12+12) Wer nimmt 1 Zug zurück, um h#1 zu machen? Im Verlauf der Partie wurde die "Fausse Position Initiale" (unechte Partiaanfangsstellung) erreicht. Vertikaler Zylinder | Entweder Weiß oder Schwarz haben das Recht zu rochieren verloren, deshalb gibt es zwei sich ausschließende Lösungen: 1) R: 1. 0-0-0, dann 1. 0-0 Dxg2# 2) R: 1. 0-0, dann 1. 0-0-0 Dxb7# |
| hans: Black takes back 0-0 and 1. 0-0-0 Dxb7# This is too easy. Can someone tell what F.P.I. means? (2010-6-24) Gerd Wilts: F.P.I. means "Fausse Position Initiale", the French for "Fake Initial Position". Luigi Ceriani used this term for a position which is exactly like the initial game array, but with Black to play. This can be achieved only with fairy conditions like vertical cylinder. I made the stipulation a little bit more precise. (2010-6-24) comment | |
Keywords: Wrong initial game array, Castling (wkwgsksg), Help retractor, Cylindre Genre: Retro Input: Gerd Wilts, 1995-6-3 Last update: Gerd Wilts, 2010-6-24 more... |
Paul Vatarescu 154 Europe Echecs 90 07/1966 S. Seider gewidmet  (13+11) #2 | |
| hans: 1. b5xc6ep.+ b7xc6 2. Dxc6# (1. f5xe6ep.# ?)Black needs kL for capture w axbxcxd fxgxf s axb hxgxh so last move can't be e7-e5 (2010-6-24) comment | |
Keywords: En passant as key Genre: Retro Input: Gerd Wilts, 1995-6-3 |
Luigi Ceriani 156 Europe Echecs 90 07/1966  (12+11) Ist der Tf8 der schwarze Damenturm? | |
| hans: No, Tf8 ist promoted pawn h7 R: -1. ..... Te7xTe8# -2. g4-g5! Th8-f8 -3 Tf8-e8 Th1-h8 -4 Tg8-f8 h2-h1=T -5 Tf8-g8 h3-h2 -6 Tg8-f8 h4-h3 -7 Tg7-g8 h5-h4 -8 Tg5-g7 h6-h5 -9 Th5-g5 h7-h6 -10. Th1-h5 Kf5-e6 -11. h3xTg4 Retract sT to h8 and a6xSb5 etc. (2010-6-24) comment | |
Genre: Retro Input: Gerd Wilts, 1995-6-3 |
Luigi Ceriani 160 Europe Echecs 92-93 10/1966 Lob  (13+9) #1 (wer?) | |
| hans: 1. --- Da1xb1#! (1. Sa6-b4#?) R: -1. Kd1-c1 f4-f3! -2. Tc1-b1 and after let out wT wT wK and sK starts an interesting L-play La3 unpromote on f8-f5, g4xLf5, sL to c8, d7xLe6 wL to f1 g2-g3 Lg1 unpromote on f8-a2 (2010-6-25) comment | |
Keywords: Whose move?, Last Moves? Genre: Retro Input: Gerd Wilts, 1995-6-3 Last update: Gerd Wilts, 2004-7-5 more... |
Luigi Ceriani 169 Europe Echecs 98 01/1967  (14+10) Was wurde aus dem Ba2? Bestimme die Schlagfälle! | |
| hans: Ba2 promoted on e8 to L. This L makes shield on h5, and got captured on g6 R: -1. f4-f5# Kh6xLg6 -2. Lh5-g6+ Dg6-f7 (2010-6-25) Henrik Juel: White captured a2xSb3xSc4xTd5xTe6, h2xLg3, and YxLc8; Black captured e7xLd6 and Kh6xLg6. (2010-6-26) comment | |
Keywords: Last Moves? Genre: Retro Input: Gerd Wilts, 1995-6-3 |
Alain Goset 185 Europe Echecs 107 01/1968 Lob  (14+10) Welches war der erste Zug des sK? Bestimme die schwarzen Schläge! | |
| hans: erste Zug des sK: Ke8-g8 Shläge: h7xTg6 a3xDb2 (b1=D/T D/Tc1 for a shield) (2010-6-25) comment | |
Keywords: Castling (sk), First Move? Genre: Retro Input: Gerd Wilts, 1995-6-3 |
Samuel Loyd American Chess Journal 1876 186 Europe Echecs 109 02/1968  (9+8) #1 | |
| "Spectrum Analysis" Sally: (Matt in 3 Zügen durch 1. Txb8, aber Matt in einem Zug: 1. Baxb5 en, passant. Retroanalyse : Bb7 - Bb5 war der letzte Zug von Schwarz! Bb6 - b5 , La7 - b8, Kc8,d8 - c7 zuletzt wäre illegal. (2010-7-9) Henrik Juel: Black captured [Lf1] on f1, d7xe6xf5xg4xh3, e7xf6, and h7xg6, accounting for all missing white men, so last move was not a6xb5, Kc8xc7, or Kd8xc7. If last move were Kb7-c7 or Kd7-c7, White pawns would have to have captured cxdxc6, d2xe3xf4xg5xh6, fxg, and hxg, accounting for all missing black men; but [Pa7]'s destiny makes this impossible: it was not captured by a white pawn, nor did it capture. If last move were e7xf6, Lb8 would have to be [Pa7]/[Pc7] promoted on a1/c1 without further black captures; but this would entail one too many captures by white pawns, because [Lf8] was captured by an officer. So last move was b7-b5. (2010-7-9) comment | |
Keywords: En passant, En passant as key Genre: Retro Input: Gerd Wilts, 1995-6-3 Last update: Mario Richter, 2010-8-17 more... |
Luigi Ceriani 196 Europe Echecs 113 06/1968  (15+13) Orthorekonstruktion, Schwarz am Zug. | |
| hans: Route of Lh8: Lh8-g7-h6-g5-h4-g3-e5-c3-b4-c5-b6-c7-d8 (the needed tempo) b6-c5-b4-c3-e5-g3-h4-g5-h6-g7-h8. Meanwhile bSh6 makes shields on f4 and d4. Tempo-moves make sTg8 and wTh1 (2010-6-24) Mario Richter: Hans, there is no need for the wB to visit d8, the tempo move can be gained by Bc5-b6-a7-c5. The OR is not unique, a complete shortest sample game is: 1. ... Rg8-g7 2.Rh1-g1 Nh6-g8 3.Rg1-h1 Ng8-e7 4.Rh1-g1 Rg7-g8 5.Bh8-g7 Ne7-c6 6.Bg7-h8 Nc6-b4 7.Bh8-g7 Nb4-a6 8.Bg7-h8 Na6-c7 9.Bh8-g7 Nc7-e8 10.Bg7-h8 Ne8-g7 11.Rg1-h1 Ng7-h5 12.Bh8-g7 Rg8-h8 13.Bg7-h6+ Nh5-f4 14.Bh6-g5 Rh8-g8 15.Bg5-h4 Nf4-h5 16.Bh4-g3 Nh5-g7 17.Bg3-e5 Ng7-e8 18.Be5-c3 Ne8-c7 19.Bc3-b4 Nc7-b5 20.Bb4-c5+ Nb5-d4 21.Bc5-b6 Rg8-g7 22.Bb6-a7 Rg7-g8 23.Ba7-c5 Rg8-h8 24.Bc5-b4 Nd4-b5 25.Bb4-c3 Nb5-c7 26.Bc3-e5 Nc7-e8 27.Be5-g3 Ne8-g7 28.Bg3-h4 Ng7-h5 29.Bh4-g5+ Nh5-f4 30.Bg5-h6 Rh8-g8 31.Bh6-g7 Nf4-h5 32.Bg7-h8 Nh5-g7 33.Rh1-g1 Ng7-e8 34.Bh8-g7 Ne8-c7 35.Bg7-h8 Rg8-g7 36.Rg1-h1 Nc7-a6 37.Rh1-g1 Na6-b4 38.Rg1-h1 Nb4-c6 39.Rh1-g1 Nc6-e7 40.Rg1-h1 Ne7-g8 41.Rh1-g1 Ng8-h6 42.Rg1-h1 Rg7-g8 (2010-6-26) comment | |
Keywords: Orthorekonstruktion Genre: Retro Input: Gerd Wilts, 1995-6-3 |
Paul Vatarescu 202 Europe Echecs 118 10/1968  (13+10) #1 | |
| hans: 1. c5xb6ep# R: -1. ?.. b7-b5 -2. c4-c5 Kc5-c6 -3 b3-b4+ Kc6-c5 -4 c3-c4 Kc5-c6 etc. (2010-6-24) comment | |
Keywords: En passant Genre: Retro Input: Gerd Wilts, 1995-6-3 |
Luis Alberto Garaza 210 Europe Echecs 122 03/1969  (16+15) Darf Weiß #2? | |
| hans: No, for there is no last Black move. (2010-6-25) comment | |
Keywords: Whose move? Genre: Retro Input: Gerd Wilts, 1995-6-3 |
Karl Fabel 01 Schachmatnaja Moskwa 28 (266) 31.12.1968 238 Europe Echecs 144 01/1971 Lob  (13+8) #1 | 1. Tf1# 1. 0-0#? |
| hj: Orig. Pf7 has moved. (2004-1-26) Mario Richter: wBh5 is a promoted bishop, wPa2-e/g8 and white double-pawns e2/e5+g2/g6 require the capture of all missing black men. To be available as a capture object, one of the missing black pawns f7 or h7 either captured the wQ or promoted on f1 or h1, in each case destroying White's ability to castle. (2010-7-14) comment | |
Keywords: Cant Castler, Castling (wk), Promotion Genre: Retro Input: Gerd Wilts, 1995-6-3 Last update: Mario Richter, 2010-7-14 more... |
Alexej Troitzkij Deutsche Schachzeitung 1909 70 Retrograde Analysis 1915 246 Europe Echecs 150 07/1971 (1) Die Schwalbe 67 02/1981  (11+12) + | 1. hxg6ep Weiße Schlagfälle: hxgxh, fxgxh; schwarze Schlagfälle: d7xc6, e7xd6xc5xb4xa3 R: 1. g7-g5 g5xTh6 2. Td6-h6 g4-g5 3. Td8-d6 f3xLg5 4. 0-0-0 f2-f3 5. Lc8-g4 Kb5-a5 6. d7xc6+ |
| hans: R: 1. g7-g5 g5xTh6 2. Td6-h6 g4-g5 3. Td8-d6 g3-g4 4. 0-0-0 g4xDh5 5. Df7-h5+ f3xLg4 6. Lc8-g4 Kb5-a5 7. d7xTc6+ A different way to get to the e.p! (2010-5-6) Sally: 1.sBg7-g5 - Bg4xDh5,2.Df7-h5+ Bg5xTh6,3.Td6-h6 - Bg3-g4usw (2010-6-24) comment | |
Keywords: En passant, En passant as key, Castling (sg) Genre: Retro Input: Gerd Wilts, 1995-6-3 Last update: Gerd Wilts, 1996-7-7 more... |
Alexej Troitzkij Chess Amateur 1924 249 Europe Echecs 150 07/1971  (15+12) Schwarz hat einen Stein von a2 genommen. Führe den Zug zu Ende! | |
| hj: In English the stipulation is something like 'Black has lifted a man from a2 to move it. Complete the move!' The last part gives the show away: 0... La2-b1, because only a bishop has a unique move. The previous retroplay was -1.Sg1 Lb1 -2.Sh3 Lc2 ... -7.Sg1 Lh1 -8.Sh3 L=h2 -9.Sg1 h3 -10.b4 h4 -11.Sh3 h5 -12.h4xSg5 Sh7 -13.Sg1 etc. Black needs to add an officer to be unpromoted on h1; but DTS fail because of retroopposition on h3. A reformulated stipulation might be 'Black to move. Add a man on a2.' (2005-4-25) Nikolai Beluhov: Standard-set version by D. Baibikov (Shakhmatnaya Kompozitsiya 57/2004, p. 61, problem N360): A. Troitsky (version by D. Baibikov) 7K/3pPPr1/4BRq1/1PPP1QP1/2pknRp1/1p1p1p1N/3P1P2/N7 http://www.janko.at/Retros/d.php?ff=7K/3pPPr1/4BRq1/1PPP1QP1/2pknRp1/1p1p1p1N/3P1P2/N7.htm 15 + 10. Black has just lifted a piece from a2. Complete the move! The solution is the same, with the motivation for it completely preserved. (2010-8-28) comment | |
Keywords: Non-standard material, Retro Opposition Genre: Retro Input: Gerd Wilts, 1995-6-3 Last update: Gerd Wilts, 2004-8-10 more... |
Nikita Plaksin 256 Europe Echecs 157 01/1972  (14+13) = | |
| hans: Start from following position: Kb2, Rc6, Ba2, Bb8, Na1, Na8, b3, c2, d2, d6, e2, f2, g3, h2, - Kd1, Qg6, Rh4, Rh8, Bc8, b7, c7, c5, d7, e6, f7, g7, h7, 1. ... b6 2. Ba7 Ba6 3. Bb1 Bd3 4. Ba2 Be4 5. Ka3 Rb8 6. Ka4 Rb7 7. Bb8 Ra7+ 8. Kb5 Kc1 9. Bb1 Ra2 10. Ba7 Kb2 11. Bb8 Ka3 12. Ka6 Kb4+ 13. Kb7 Kb5 14. Kc8 Ka6 15. Kd8 Kb7 16. Ke8 Kc8 17. Kf8 Kd8 18. Kg8 Ke8 19. Kh8 Ra7 20. Ba2 Rb7 21. Ba7 Rb8 22. Bb1 Kf8 23. Ba2 Re8 24. Bb1 Re7 25. Ba2 Ke8 26. Bb1 Kd8 27. Ba2 Kc8 28. Bb1 Kb7 29. Ba2 Ka6 30. Bb1 Kb5 31. Ba2 Kb4 32. Bb1 Ka3 33. Ba2 Bd3 34. Bb1 Ba6 35. Ba2 Bc8 36. Bb1 Ra4 37. Bb8 Ra7 38. Ba2 Rb7 39. Ba7 Rb8 40. Bb1 Qd3 41. Ba2 Qa6 42. Bb1 Qb7 43. Ba2 Kb2 44. Bb1 Kc1 45. Ba2 Kd1 46. Bb1 Ke1 47. Ba2 Kf1 48. Bb1 Kg2 49. Ba2 Kh3 50. Bb1 Kg4 51. Ba2 Kf5 52. Bb1 Ke5 53. Ba2 Kd5 54. Bb1 Re8+ {50 moves rule} 1/2-1/2 (2010-6-25) comment | |
Keywords: Rule of 50 moves Genre: Retro Input: Gerd Wilts, 1995-6-3 |
Josef Haas 269 Europe Echecs 171 02/1973  (10+14) #1 vor 42 Zügen | |
| hans: R: -1.--- Kd8-c8 ...... -17. Kf2xTg1 ....... -33. Kc8-d8 -34. Tg1-h1 Td8-d7 -35. Tg1-h1 Td7-c7 -36. Th1-g1 c7xLd6 -37. La3-d6 Td4-d7 -38. Lc1-a3 Td5-d8 -39 b2-b3 Kd7-c8 -40 Kb8-a8 Kd6-d7 -41 Kc8-b8 Kc5-d6 -42 Kb8-c8 Kb6-c5 1. --- Td5-d8# (2010-6-25) comment | |
Keywords: Defensive Retractor Genre: Retro Input: Gerd Wilts, 1995-6-3 |
Jean Roche 289 Europe Echecs 191 10/1974  (11+16) cooked = | |
| hans: This looks 'mission impossible' The captures are clear hxgxfxexdxc(SSLDP)but how got the Dame in game? For d2-d3 only after d3xc2 and g2-g3 after all wT and sT behind the pawns and Sh1 is on place. So how does wD pass wK ? (2010-6-26) Henrik Juel: Indeed, it seems like an illegal position. Maybe the idea was to retract as fast as possible: sD, sL, sK to d2 and (much) later to a1, wK out via d2, sK to d2 and later out via g2 to e8, sD to d8, sL to c8; this plan requires several T retractions and screenings, and possibly it takes 50.0 retractions or more before b7-b6 can be retracted as the last pawn move in the game. I did not bother to count, because the idea makes sense only if the position is legal. What is the meaning of the keyword 'unused' here? (2010-6-27) Gerd Wilts: The position is indeed illegal. I removed the unnecessary keyword 'unused'. (2010-6-27) comment | |
Keywords: Rule of 50 moves, illegal position Genre: Retro Input: Gerd Wilts, 1995-6-3 Last update: Gerd Wilts, 2010-6-27 more... |
Boris Ostruh 321 Europe Echecs 220 04/1977 3. ehrende Erwähnung  (11+12) Löse die Stellung auf! | |
| hans: R: -1. a7-a8=D# g6xf5 -2. Kc3-b4 Ka5-a6 -3. Sf4-d5 Ka6-a5 -4. d5-d6 Ka5-a6 -5. Ld6-c7 Ka6-a5 -6. c7xSd8=T Sc6-d8 -7. Kb3-c3 Dd8-e8 -8. Kc3-b3 Te8-f8 -9. Tf8-g8 Ka5-a6 -10. Lg8-h7 Ka6-a5 -11. h7-h8=S Ka5-a6 -12. h6-h7 Ka6-a5 -13. h7xSg8=L (D-T-S-L) (2010-6-25) comment | |
Keywords: Allumwandlung Genre: Retro Input: Gerd Wilts, 1995-6-3 |
Radu Dragoescu 322 Europe Echecs 223 07/1977  (14+10) #2 | |
| hans: Black to move; 1. --- b5-b4 2. Lc3xd2 b4-b3 (Ka4-a5) 3. c2xb3# (Td3-a3#) R: -1. Tf1-f7 f7xDg6 -2. f5xTe6 Te4-e6+ etc. (2010-6-26) comment | |
Keywords: Whose move? Genre: Retro Input: Gerd Wilts, 1995-6-3 |
Henri Nouguier 324 Europe Echecs 223 07/1977  (13+3) h#1 | |
| hans: 1. Th2xf2 De1xf2#! 1. Th2xh3 0-0#? (Castling illegal) R: -1. Kf1xSe1 Sg2-e1 -2. Ke1-f1 Sf4-g2+ -3. Tg1-h1 Sd5-f4 -4. Tf1-g1 Se3-d5 -5. Tg1-f1 Sf1-e3 -6. Tg1-h1 Tg2-h2 -7. Th2-h1-g1 Tg1-g2 -8. Th1-h2 g2-g1=T -9 h2-h3 h3xSg2 (2010-6-26) comment | |
Keywords: Cant Castler, Castling (wk) Genre: h#, Retro Input: Gerd Wilts, 1995-6-3 |
Claude Wiedenhoff 353 Europe Echecs 247 07/1979 Lob  (13+12) In welcher Reihenfolge haben die BB b6, c6 und f6 gespielt? b) wTd8 nach e5 | |
| hans: a) c7xDb6 - b7xLc6 - f7-f6 R: -1. c4-c5+ Ke6-d6 -2. Sb5-c7+ c7xDb6 -3. Th8xTd8! b) f7-f6 - b7xLc6 - c7xDb6 R: -1. c4-c5+ f7-f6 -2. Tg5-e5 Ke6-d6 -3. Sb5-c7+ cross-capture (2010-6-26) comment | |
Genre: Retro Input: Gerd Wilts, 1995-6-3 Last update: Gerd Wilts, 2005-11-13 more... |
Janko Furman 378 Europe Echecs 265 01/1981 (9) diagrammes 108 01-03/1994 2. ehrende Erwähnung  (11+12) #1 | |
| hans: 1. ?.. Sg5-e4#! (1. Sd2-f1#?) R: -1 Ld7-a4 c4-c3 -2 Lc8-d7 c5-c4 -3 c7-c8=L c6-c5 -4 b6xTc7 Tc8-c7 -5 b5-b6 Tc8-a8 -6 a4xLb5 Unpromote Sd2, Tb4, Dc2, and retract sLb5 to homesquare, then 29. ?.d7xLe6 30. Lc4-e6 31. Lf1-c4 32. e2-e3 etc. The 4 promoted pieces D, T, L, S, are all on the board. The ?trick? is d7xLc6 because the replacing wL got just in time to a4 (2010-6-20) comment | |
Keywords: Allumwandlung, Whose move? Genre: Retro Input: Gerd Wilts, 1995-6-3 |
Michel Caillaud 421 Europe Echecs 295 07/1983 25 Shortest Proof Games 11/1991 (1) diagrammes 103 10-12/1992 (A) Quartz 22 10-12/2002 A. Hazebrouck gewidmet 1. Preis  (13+12) BP in 35,5 | 1. h4 c5 2. h5 c4 3. Th4 c3 4. Tc4 b5 5. g4 b4 6. Lg2 b3 7. Lc6 bxa2 8. b4 a5 9. b5 a4 10. b6 a3 11. La4 Sc6 12. b7 d5 13. b8=D d4 14. Dd6 d3 15. Dg6 dxc2 16. d3 fxg6 17. Ld2 c1=L 18. Db3 c2 19. La5 Lh6 20. Sd2 c1=L 21. Sf1 Lcg5 22. f4 Kf7 23. 0-0-0 a1=L 24. fxg5 a2 25. gxh6 Kf6 26. Sh2 Kg5 27. Tf1 Lf6 28. Tff4 a1=L 29. Kb1 Lae5 30. d4 Lb7 31. dxe5 Dd2 32. exf6 Te8 33. f7 Sf6 34. Dd3 Sd7 35. Ld1 Sdb8 36. Sgf3+ 5 Frolkin-Ceriani-Umwandlungen: 4 schwarze Läufer und 1 weiße Dame! Eine der bahnbrechenden frühen KBPs. |
| Silvio Baier: Der wesentliche thematische Inhalt ist bereits nach 31,5 Zügen erreicht. Bis dahin ist es C+ (Euclide 0.98). (2010-8-4) comment | |
Keywords: Ceriani-Frolkin Theme (llllD), Unique Proof Game, Castling, Promotion Genre: Retro Input: Gerd Wilts, 1995-6-3 Last update: Silvio Baier, 2010-8-4 more... |
Victor Cuciuc 448 Europe Echecs 319/320 07-08/1985  (12+13) #1 | |
| hans: 1. Rf7-f8# (Qxh2#?) -1 .... Kb8xSa8 -2 Sc7-a8+ Kc8-b8 -3 Sd5-c7 Kd8-c8 -4 Sf4-d5 Kc8-d8 -5 Sh5-f4 Kd8-c8 -6 Lg3-h2 Dh3-h1 -7 Lh2-g3 Dg3-h3 -8 Th1-g1 Kc8-d8 -9 Tg1-h1 Kb8-c8 -10 Th1-g1 Ka8-b8 -11 Tg1-h1 Dh3-g3 -12 Lb8-h2 (wLg8=Ph2 bLe1=Pc7) Lc8, Lf8, Lf1 and Pc2! got captured on home-square (2010-6-17) comment | |
Keywords: Whose move? Genre: Retro Input: Gerd Wilts, 1995-6-3 |
Louis Scotti 458 Europe Echecs 325 01/1986  (8+15) Wer setzt matt? b) sBb7 nach b6 | |
| hans: a) 1.b4xc5 d6xc5# R: -1 .... bxc5+ -2. D/T/Sc5 b) 1. dxc6 e.p.+ d5 2. Lxd5# R: -1 .... c5+ -2 Kd4 d6+ The route of sLc8 makes the difference (2010-6-18) comment | |
Keywords: En passant Genre: Retro Input: Gerd Wilts, 1995-6-3 Last update: Gerd Wilts, 2005-11-13 more... |
Philippe Leroy 473 Europe Echecs 337 01/1987  (13+11) Löse die Stellung auf! | |
| hans: R: -1 Dd6-b8# Lb4-a3 -2 De7-d6 Ld2-b4 -3 Dd6-e7 Lh6-d2 -4 De7-d6 Lf8-h6 -5 Dd6-e7 Le7-f8 -6 a2-a4 Ld8-e7 -7 Df8-d6 Le7-d8 -8 Dg7-f8+ Lf8-e7 -9 Dg8-g7 Lh6-f8 -10 Dh7-g8+ Le3-h6 -11 Dg7-h7 Lg1-e3 -12 Dh7-g7 h2xg1=L -13 Le3-g1 h3-h2 -14 Lh6-e3 h4-h3 -15 Lf8-h6 h5-h4 -16 Dg8-h7 h6-h5 -17 g7-g8=D h7-h6 -18 h6xg7 Sh5-g7 -19 Le7-f8 Sf4-h5 -20 Ld6-e7 Se2-f4 -21 Lc7-d6 Sd4-e2 -22 Sb4-c6 Sc6-d4+ -23. Ld6-c7 Kd8-c8 -24 Te7-d7+ Ke8-d8 -25 Td7-e7+ Kf8-e8 -26 Te7-d7+ Kg8-f8 (retro shields and tempomoves) (so good, hj?) (2010-6-19) Henrik Juel: In retroplay you need to indicate which man is uncaptured, e.g., -12... h2xLg1=L and -18.h6xSg7. (2010-6-20) Mario Richter: The last shield is not unique - instead of Sh5-g7 -19 Le7-f8 Sf4-h5 -20 Ld6-e7 Se2-f4 -21 Lc7-d6 Sd4-e2 -22 Sb4-c6 Sc6-d4+ one could also play: -18. h6xSg7 Se8-g7 -19.Ld6-f8 g7-g6 -20.Lc7-d6 Sd6-e8 -21.Sb4-c6 Sb7-d6+ (2010-6-21) comment | |
Keywords: Promotion Genre: Retro Input: Gerd Wilts, 1995-6-3 |
Andrej N. Frolkin 478v Europe Echecs 340 04/1987  (13+15) Welches waren die letzten 8 Einzelzüge? | |
| hans: R: -1 ?? Tc2-c1# -2 h4-h5 Lc1xDb2 -3 h2-h4 h3xLg2 -4 Da2xSb2 h4-h3 -5 Lh3-g2 (2010-6-19) comment | |
Keywords: Last Moves? (8) Genre: Retro Input: Gerd Wilts, 1995-6-3 |
Andrej N. Frolkin 484 Europe Echecs 346 10/1987 1. Lob  (7+15) Löse die Stellung auf! | R: 1. La8xSb7 Sc5-b7 2. Lb7-a8+ Se4-c5 3. La8xSb7 Sa5-b7 4. Lb7-a8 Sf6-e4 5. La8xSb7 Sc5-b7 6. Lb7-a8+ Sg8-f6 7. La8xLb7 Dh8-h7 8. Th7-h6 Se4-c5 9. Th6-h7 Th7-g7 10. g7-g6 |
| hans: R: -1. ?? La8xb7 -2. Sc5-b7 Lb7-a8+ -3. Se4-c5 La8xb7 -4. Sa5-b7 Lb7-a8+ -5. Sf6-e4 La8xb7 -6. Sc5-b7 Lb7-a8+ -7. Sg8-f6 La8xb7 -8. Dh8-h7 h7xg6 -9. Lc2-g6 Tf6-h6 -10. Tg3-g7 I guess this is the idea,, and mr. Juel will show where the extra pieces came from. I don't know! ;-) (2010-6-19) Henrik Juel: I don't know either, and the proposed solution is dubious. (2010-6-20) Gerd Wilts: Hans' solution is nearly correct, only h7xg6 seems wrong. (2010-6-20) Henrik Juel: Thanks for providing the solution, Gerd. The further resolution requires careful retroplay. wK can be extracted via c6, and a wS can be unpromoted on b8 (if Black cross-captured b7xPa6 and a7xLb6). (2010-6-20) hans: You see Henrik, you knew! I missed the N/E corner, but my idea was right! PAS: 1. a4 h5 2. a5 Th6 3. a6 bxa6 4. e4 Sf6 5. b4 d6 6. b5 Kd7 7. b6 Ke6 8. b7 Sbd7 9. b8=S Sg4 10. Sc6 Lb7 11. Sa5 Lc6 12. Ke2 La4 13. Kd3 Tc8 14. Kc4 Lxc2 15. e5 Kf5 16. Kd5 Sxf2 17. Kc6 Sg4 18. Kb7 Sxh2 19. Ba3 Sg4 20. Lc5 Sgf6 21. Lb6 axb6 22. Ka7 Le4 23. Le2 La8 24. Lf3 Sb8 25.Lb7 c6 26. e6 Sfd7 27. exd7 Tc7 28. Ta4 Dc8 29. Tg4 Tf6 30. Tg6 e6 31. Th6 Le7 32. Th8 Ld8 33. Te8 Kg6 34. Te7 Kh7 35. Sh3 Kg8 36. Sf2 Kf8 37. Sg4 Tg6 38. Sh6 Tf6 39. Sg8 Tg6 40. Dc2 Tf6 41. Dh7 Tg6 42. Dh8 Tf6 43. Th4 Tg6 44. Tg4 Tf6 45. Tg6 Tf5 46. Th6 Tf6 47. Th7 Tg6 48. Sc3 Th6 49. Se4 g6 50. Tg7 Th7 51. Sc5 Th6 52. Dh7 Lxb7 53. Sf6 La8+ 54. Scb7 Lxb7 55. Se4 La8+ 56. Sb7 Lxb7 57. Sc5 La8+ 58. Sb7 Lxb7 (2010-6-21) comment | |
Genre: Retro Input: Gerd Wilts, 1995-6-3 Last update: Gerd Wilts, 2010-6-20 more... |
Philippe Leroy 485v Europe Echecs 346 10/1988 A. Hazebrouck gewidmet  (13+12) Entschlage die fehlenden Läufer so bald wie möglich! | |
| hans: PAS: 1. h4 g6 2. h5 Lh6 3. Sh3 Le3 4. dxe3 b5 5. Ld2 Lb7 6. Lb4 Lf3 7. gxf3 a5 8. Lg2 axb4 9. Kd2 Kf8 10. Dg1 Kg7 11. Sc3 Kh6 12. Td1 Df8 13. Kd3 Dg7 14. Td2 De5 15. Td1 Dh2 16. Sf4 Kg5 17. Lf1+ Kh4 18. Sg2+ Kh3 19. Td2 Ta4 20. Td1 b3 21. Td2 Th4 22. Se4 Sc6 23. Sg3 Se5+ 24. Kc3 Sg4 25. Td5 S8f6 26. h6 Se8 27. Th5 Sg7 28. Kd4 Se6+ 29. Ke4 Sf8 30. Kf4 Sf6+ 31. Kg5 Sd5 32. Sf5 Sf4 33. Se1+ Sg2 34. c3 b4 35. Sc2 bxc2 36. Sd4 c1=S 37. Sc2 Sd3 38. Se1 Sf4 39. Sc2 b3 40. Se1 Tg8 41. Sc2 bxc2 42. exf4 c1=D 43. c4 Dc3 44. f5 Dg7 45. f6 Th8 46. fxg7 (2010-6-19) comment | |
Genre: Retro Input: Gerd Wilts, 1995-6-3 |
Nikita Plaksin Andrej Kornilow 501 Europe Echecs 358 10/1988 Die Schwalbe 127 02/1991 A. Hazebrouck zum 70. Geburtstag gewidmet  (14+11) Löse die Stellung auf! | |
| hans: R: -1. g5xSf6+ Sd5-f6 -2. Lf6-a1+ Sc3-d5 -3. f4xLg5 Sb1-c3 -4. e3xTf4 b2-b1=S -5. e2-e3 a3xSb2 -6. Sa4-b2 Tc4-f4 -7. Sb2-a4 Tc1-c4 -8. Sa4-b2 c2-c1=T -9. Sb2-a4 c3-c2 -10. Sa4-b2 b4xSc3 -11. Se4-c3 Le3-g5 -12. Sg5-e4+ Ld4-e3 -13. Sb6-a4 Lb2-d4 -14. Sa4-b6 Lc1-b2 -15. Sb2-a4 c2-c1=L -16. Sa4-b2 c3-c2 -17. c2xLd3 Ceriani-Frolkin with 3 determined promotions (TLS) (so ok?) (2010-6-20) Henrik Juel: Yes, this seems correct. Please keep up the good work, hans; eventually all the PDB retros will be solved. (2010-6-21) comment | |
Keywords: Ceriani-Frolkin Theme, Promotion Genre: Retro Input: Gerd Wilts, 1995-6-3 |
Philippe Leroy 536 Europe Echecs 376 01/1991  (10+13) #1 | |
| hans: 1. Tg3#! (1. ?..Sf6#?) R: -1. ?.. h4-h3 -2. a5xLb6 h5-h4 -3. a4-a5 La5-b6 -4 Tc6-a6 Lc3-a5 -5 Ta6-c6 Lf6-c3 -6 Tc6-a6 Le7xSf6 -7 Se4-f6 Le8-f7 -8 Ke5-d5 e7xD/T/Sd6+ (D/T/S is promoted e-pawn (exf7xLg8) (2010-6-20) Mario Richter: What's the point in this problem? Position can be resolved both with White to move as well as with Black to move; a white promotion is not forced (after bBf8 went home, Black can retract Pe7xPd6, wPd6 could come from c2). (2010-6-21) comment | |
Genre: Retro Input: Gerd Wilts, 1995-6-3 |
Michel Caillaud 2853 feenschach 48 10-12/1979 feenschach 61 08/1982 671 FIDE Album 1977-1979 1984  (12+10) Maos e7, g1. In der PAS sind die SS durch Maos ersetzt. Beide Rochaden sind möglich. a) Wo wurden die LL geschlagen? b) Wieviele Züge hat der sMao b8 mindestens gemacht? | |
| Henrik Juel: The wB's fell on c6 and c1, the bB's on h3 and e7. Orig. Mao b8 made at least 10 moves, incl. a switch-back and a round-trip: b8-d7-b8, then a6, then b4-a2xc1-e2-f4-d5-b4, where it was captured. You may find an analysis on the RetroCorner, http://janko.at/Retros/ FIDE/G671sol.htm (2003-4-10) hj: For those who want to know: A Mao moves like a knight, but only if the orthogonal square is empty. Me7 may move to c8 via d7, or to f5 via e6, but not to g8 because f7 is occupied. With many men on the board, the Mao is a very weak man. (2003-4-11) paul: 1.a3 d6 2.f3 Bh3 3.gxh3 Qd7 4.Bg2 Qb5 5.Bf1 Qd3 6.exd3 Md7 7.Qe2 Rc8 8.Qe5 Ra8 9.Qf6 exf6 10.Bg2 Be7 11.Me2 Bd8 12.Mf4 Me7 13.Rg1 Md5 14.Bf1 Mb6 15.Md5 Mc4 16.dxc4 Rc8 17.Mb6 Ra8 18.Bd3 Rc8 19.Be4 Rb8 20.Bc6 bxc6 21.Mc8 Rb3 22.Rg5 Rd3 23.Rb5 Rc3 24.Rb6 cxb6 25.bxc3 Mb8 26.Bb2 Ma6 27.Bc1 Bc7 28.Me7 Mb4 29.Mc8 Ma2 30.Me7 Mxc1 31.Mc8 Me2 32.Me7 Mf4 33.Mc8 Md5 34.Me7 Mb4 35.axb4 Bd8 36.Ma3 Bc7 37.Mb5 Bd8 38.Md4 Bc7 39.Me2 Bd8 40.Mc8 Be7 41.Mxe7 c5 42.Mg1 h6. (2010-8-29) comment | |
Keywords: Castling (wgsk) Pieces:  = MaoGenre: Retro Input: Gerd Wilts, 1995-6-3 Last update: Gerd Wilts, 1996-9-4 more... |
Alexander Klibanskij Nikita Plaksin 2288 feenschach 40 11-12/1977 feenschach 49 01-03/1980 672 FIDE Album 1977-1979 1984 2. Preis  (13+10) a) Wo wurden die fehlenden Steine geschlagen? b) Welches war der erste Zug des sK? Gitterschach | |
| paul: Solution: wKB was captured at home. The wK could only reach g1 through O-O. Black did just play Qb1xd1+. The wR now on a2 could only reach a2 from higher up on the a-file. Which requires cross-captures a2xb3 and b2xa3, in that order. Thus the sequence has been wNb3-a1, then wPa2xb3, then wRa-a2, then wPb2xa3, then wBc1-b2. The actual wRa2 must be a promotee (can't be wKR after O-O) and the original wRa1 has been captured on its home square. Then the wKR has just been taken on d1. The promoted R requires the sequence wPh2-h4xg5xf6xe7xd8=R. This (and the a-b cross-captures) account for all missing black units, so that the bPe7 is part of these captures, and has been taken on e7, forcing the g5 and f6 captures to be bl. Knights. The bQB is white-squared and has been taken on b3. The bK was not on e8 when e7xd8=R occurred. He could only have escaped e8 with O-O-O (hence his first move !) because square e7 and bBf8 had never been free before. So that the bQR was taken on d8 and the bKR on a3. (2010-8-29) comment | |
Keywords: Grid Chess, Castling (sg), Where has piece x been captured?, First Move? Genre: Retro Input: Gerd Wilts, 1995-6-3 Last update: Gerd Wilts, 1996-9-2 more... |
Jean-Michel Trillon Rex Multiplex 1985 RA210 diagrammes 82 07-09/1987 2. Preis  (12+9) #1 Die Rochaden sind legal. Gitterschach | |
| paul: Solution de l?auteur: Avec 4xF d?origine pris a domicile, le FBf6 resulte de la promotion f2-f4xCe5xCd6xPc7xDb8=F. Ces prises sont forcees car la DN n?a pas pu quitter la 8eme rangee a cause du Pc7 bloqueur, de l?hypotese de roque legal et de la regle grille. Il semble possible de donner le retro-coup aux Noirs: 1.a7-a5 ? Fd4-f6 (Fe5-f6 illegale) 2.h4xCg4 Fe5-d4 3.h7-h5 h4xPg5 4.Pf6xCg5 Fb8-e5 5.f7-f6 c7xDb8=F. Mais cette position est illegale avec trait aux Blancs: les Blancs ont joue un nombre impair de coups, les Noirs un nombre pair. Ainsi les Noirs ont le trait: Th8xh1# ! (et pas Th1xh8#) (2010-8-26) comment | |
Keywords: Conditional problem, Grid Chess, Castling (wksksg), Promotion (L), Whose move? Genre: Retro Input: Gerd Wilts, 1995-6-3 Last update: hpr, 2001-3-18 more... |
Nenad Petrovic 616 problem 25-26 10/1954 (XII) problem 37-40 09/1956 39 L'Echiquier de France 07/1958 (IV) problem 61-64 07/1959 2 La Genesi delle Posizioni 1961 (87) problem 91-94 04/1964 (5) problem 101-102 09/1966 (BII) Die Schwalbe 4 04/1970 (59) problem 144-147 12/1971 (A) Die Schwalbe 16 10/1972 Die Schwalbe 25 02/1974 (VI) Die Schwalbe 33 06/1975 Die Schwalbe , p. 195, 1981 7738 Thema Danicum 95, p. 172, 07/1999 1. Preis  (6+7) h#3 | *) 1. ... Tg1 2. Lb4 Tg7 3. Ka5 Ta7 1) 1. cxb3ep 0-0 2. Sd5 Tb1 3. Sb4 axb3# |
| Sally: Weiß muß rochieren, um den e.p. -Schlag zu begründen, denn nur ,wenn Weß den König und Turm noch nicht gezogen haben , muß zuletzt bb2 - b4 erfolgt sein. S. 195 Schwalbe Feb. 1981. (2010-6-22) more ... comment | |
Keywords: a posteriori (AP), En passant, Castling (wk) Genre: h#, Retro Input: Gerd Wilts, 1995-6-3 Last update: Gerd Wilts, 2010-6-22 more... |
Samuel Loyd Texas Siftings 1888 599 Sachove umeni 25/04/1949 33 32 personaggi e 1 autore 1955 (G) Die Schwalbe 16 10/1972 problem 152-156 04/1973 (D15) feenschach 27 04/1975 (5) Die Schwalbe 86 04/1984 (I) Die Schwalbe 234 12/2008 (1) Die Schwalbe 241 02/2010  (2+7) C+ #3 | Entweder 1. Dd4! oder 1. Dg5! |
| AB: Is this really cooked if properly declared as RV? 1 Qd4! if kside not ok, 1 Qg5! if qside not ok, and both solutions work if neither castling ok. This latter overlap is not a defect, in that both winning lines are otherwise forced. Or is there some other winning line that I am missing? (2001-10-17) GW: The problem is indeed not cooked but C+! (2001-10-17) Andrew Buchanan: Note also the try 1.Qc5? which is defeated by either castling. (2010-3-1) Sally: Zwei Teilaufgaben: 1. 0 0 0 (Zulässig): 1.Dd4+ -Tg8, 2. Dd7+ -Kf8, 3.Dxe7#. 2. 0 0 (zulässig): 1.Dg5! -Kd8, 2. Dd5+ -K bel. 3.Dxa8#. Auch wenn Ke8 zuletzt war, gibt es diese 2 Lösungen! (2010-6-26) comment | |
Keywords: Cant Castler, Retro variants (RV, pRA), Castling (sksg), Minimal Genre: Retro Input: Gerd Wilts, 1995-6-3 Last update: Gerd Wilts, 2010-3-6 more... |
Samuel Loyd Missouri Democrat 1859  (13+5) Matt in wieviel Zügen? | Schwarz kann entweder groß oder klein rochieren, aber nicht beides. Also #2: entweder 1. Db7 (0-0?) oder 1. Dxg7 (0-0-0?) |
| Sally: Ohnr vorheriges Spiel sind beide Rochaden zulässig, dann braucht man 3! Züge: 1.Tg1(oder Nebenlösung 1. Sh7) 0 0 0/ 0 0/ Kf8. 2. Dc7#/Dxd7+ Entweder ist s.0 0 0 zulässig (dann1. Db7!) oder s. 0 0 (dann 1. Dxg7!)Ohne vorheriges Spiel sind beide Rochaden zul#ssig, dann btraucht man 3 Tüge: 1.Tg1 (oder Nebenlösung 1.Sh7) 0-0-0)0-0/Kf8, 2. Dc7#/Dxg7+/Dxg7+ usw. (2010-7-9) comment | |
Keywords: Cant Castler, Retro variants (RV, pRA), Castling (wkwgsksg) Genre: Retro Input: Gerd Wilts, 1995-6-3 Last update: Gerd Wilts, 2004-5-23 more... |
Samuel Loyd Chess Association Congress 1891 19A Retrograde Analysis 1915 11 Fern vom Alltag 1925 17 L'Echiquier de France 04/1957 Thema Danicum 100 2000  (8+6) Welches war der letzte Zug? Schwarz gibt auf! | R: 1. Kf3xBg3 |
| Sally: S. 31 Eigenartige S. Aufgaben (W. Keym) (2010-7-9) Henrik Juel: If the check were to be explained by a7-a8=L, b7xa8=L, or b7xc8=D, White would have made 10 pawn captures, which is impossible, because [Lf8] was captured by an officer. So wK delivered the check, implying an ep capture: -1.Kf3xPg3 f4xPg4ep -2.g2 etc. (2010-7-9) comment | |
Keywords: Last Move? (KxB) Genre: Retro Input: Gerd Wilts, 1995-6-3 Last update: Gerd Wilts, 2004-5-23 more... |
Samuel Loyd NY State Chess Association 16/08/1894 British Chess Magazine 12/1894 Deutsches Wochenschach 1895 77 Retrograde Analysis 1915 113 Sam Loyd und seine Schachaufgaben 1926 (13) Die Schwalbe 67 02/1981 1 Shortest Proof Games 11/1991 "The Souvenir-Problem"  (14+10) #4 | 1. gxf6ep+ Kf5 2. Tg5+ Ke4 3. Dg6+ Kd4 4. c3#,Dd3# |
| hj: Tg8 is orig. Pa7 promoted on a1. My favorite Loyd retro. (2004-3-8) TV: Moved retroanalysis from a novelty to its own genre. Spectacular! (2004-3-8) A.Buchanan: 1.gxf6ep+ Kf5 2.Rg5+ Ke4 3.Qg6+ Kd4 4.c3#,Qd3# (2010-3-1) Sally: S.95 Eigenartige S. Aufgaben (W. Keym)mit Beweispartie! (2010-6-26) comment | |
Keywords: En passant as key Genre: Retro Input: Gerd Wilts, 1995-6-3 Last update: Olaf Jenkner, 2010-3-2 more... |
Andrej N. Frolkin 2544v U.S. Problem Bulletin 92 11-12/1993 feenschach 121 11/1996 (2. Preis)  (13+13) cooked Welches waren die letzten 50 Einzelzüge? | R: 1. Tg3-h3+ f5-f4 2. Ke6-f7 f6-f5 3. Kd5-e6 f7-f6 4. Lf6-e7 e2-e1=L 5. Te8-e3 e3-e2 6. Tc8-e8 e4-e3 7. c7-c8=T e5-e4 8. Ke4-d5 e6-e5 9. c6-c7 e7-e6 10. Se6-d4 d4-d3 11. Ke3-e4 d5-d4+ 12. c5-c6 d6-d5 13. c4-c5 d7-d6 14. c2-c4 c3xTb2 15. Dd1-b1 c4-c3 16. Tb1-b2 c5-c4 17. Lb2-f6 c6-c5 18. Lc1-b2 c7-c6 19. b2-b3 b3xLa2 20. Ke2-e3 b4-b3 21. Lb3-a2 b5-b4 22. La4-b3 b6-b5 23. Lb5xBa4 a5-a4 24. Ke1-e2 a6-a5 25. Lf1-b5 a7-a6 26. e2xXf3 Cook: 1. Tg3-h3+ e2-e1=L 2. Lf6-e7 f5-f4 3. Te8-e3 e3-e2 4. Sb5-d4 e4-e3 5. Tc8-e8 e5-e4 6. c7-c8=T e6-e5 7. c6-c7 e7-e6 8. c5-c6 d4-d3 9. c4-c5 d5-d4 10. c2-c4 c3xTb2 11. Dd1-b1 c4-c3 12. Tb1-b2 c5-c4 13. Lb2-f6 d6-d5 14. Lc1-b2 f6-f5 15. b2-b3 b3xLa2 16. Ke6-f7 b4-b3 17. Lc4-a2 c6-c5 18. a2-a3 c7-c6 19. Sa3-b5 b5-b4 20. Kd5-e6 b6-b5 21. Sb5xBa3 a4-a3 22. Lf1-c4 a5-a4 23. Ke4-d5 a6-a5 24. Ke3-e4 d7-d6 25. Ke2-e3 a7-a6 26. Ke1-e2 f7-f6 27. e2xBf3 |
| paul: See P0008856 as correction. (2010-6-28) more ... comment | |
Keywords: Last Moves? (50), Promotion Genre: Retro Input: Gerd Wilts, 1995-6-3 Last update: Gerd Wilts, 2010-6-27 more... |
Nikita Plaksin 2952 U.S. Problem Bulletin 93/94 01-04/1994  (11+13) Legal mate? | |
| paul: Sol: 1.Sf3-d2# h7-h6 2.Tf5-g5 g5xDh4! 3.Dh6-h4 f6xDg5! 4.Df8-h6 e7xDf6! 5.Db8-f8 c6-c5 6.b7-b8=D a7-a6 7.a6xTb7 etc. QQQ-Ceriani-Frolkin theme. (2010-6-27) comment | |
Genre: Retro Input: Gerd Wilts, 1995-6-3 |
Jasper van Atten Probleemblad 1989 53 Shortest Proof Games 11/1991 3405 U.S. Problem Bulletin 102/103 07-10/1995  (14+15) C+ BP in 18,0 | 1. d3 Sh6 2. Kd2 Sf5 3. Kc3 Sd4 4. Kb4 Sb3 5. c3 Sxa1 6. Db3 Tg8 7. De6 fxe6 8. h4 Kf7 9. Th3 Kf6 10. Tf3+ Kg6 11. g3 Sb3 12. Lh3 Sd4 13. Lf5+ Kf7 14. Lxh7+ Ke8 15. Tf6 Sf5 16. f4 Sh6 17. f5 Th8 18. Lf4 Sg8 |
| paul: cooked by Euclide: 1. Pd2-d3 Nb8-a6 2. Ke1-d2 Na6-b4 3.Kd2-c3 Ra8-b8 4. Ph2-h4 Nb4-a6 5.Rh1-h3 Na6-c5 6.Rh3-f3 Rb8-a8 7.Rf3-f6 Nc5-b3 8. Pf2-f4 Nb3xa1 9.Pg2-g3 Na1-b3 10. Bf1-g2 Nb3-a5 11.Bg2-e4 Na5-c6 12.Be4xh7 Nc6-b8 13. Kc3-b4 Ng8-h6 14.Pc2-c3 Nh6-f5 15.Qd1-b3 Nf5-h6 16. Qb3-e6 Pf7xe6 17.Pf4-f5 Nh6-g8 18.Bc1-f4. (2010-6-27) Mario Richter: Since this cook is rather obvious, and because 'Loss of tempo' is indicated as the theme of this PG, my guess is, that the correct stipulation is "BP in exakt 18.0" (2010-6-27) comment | |
Keywords: Unique Proof Game, Loss of tempo (k5) Genre: Retro Computer test: Natch 2.3 Copyright (C) 1997,98,99,2001,2002,2003,2004 Pascal Wassong Input: Gerd Wilts, 1995-6-3 Last update: Gerd Wilts, 2005-12-24 more... |
Werner Keym Die Schwalbe 120 12/1989  (3+1) Welches war der Mattzug? | R: 1. 0-0-0# |
| HBae: Vorgänger P1108445 (2010-9-9) comment | |
Keywords: Welches war der Matt- oder Pattzug?, Castling (wg), Last Move? (0-0-0) Genre: Retro Input: Gerd Wilts, 1995-6-3 |
Thomas R. Dawson 5163 Fairy Chess Review Yorkshire Weekly Post 30/07/1910 Funkschach 06/02/1927 7543 FEENSCHACH 12/1965 Problemkiste 92 04/1994  (1+2) C+ -1(w+s), dann h#1 | R: 1. Kh7xLh8 Ld4xDh8, dann 1. Lg1 Da8# |
| more ... comment | |
Keywords: Help retractor Genre: Retro Computer test: Popeye Windows-32Bit v4.55 (312 MB) & Rawbats Input: Gerd Wilts, 1995-6-3 Last update: Gerd Wilts, 2010-8-19 more... |
Andrej N. Frolkin diagrammes 1990 1. ehrende Erwähnung  (9+12) cooked Welches waren die letzten 14 Einzelzüge? | |
| Nikolai Beluhov: This problem was reported cooked by D. Baibikov. Here is one possible correction with the cook as the intended retroplay: A. Frolkin (correction) 8/2p2p2/3q4/4b2q/6bk/1Pqpp2P/P1PPPKPq/4BB1q http://www.janko.at/Retros/d.php?ff=8/2p2p2/3q4/4b2q/6bk/1Pqpp2P/P1PPPKPq/4BB1q.htm 10 + 12. Last 14 single moves? Retro: 1. ... e4-e3+ 2. Ke3:Rf2 Rf6-f2 3. Kf2-e3+ Bf5-g4+ 4. Ke3:Rf2 Rf4-f2 5. Kf2-e3+ Rg4-f4+ 6. Ke3:Nf2 Bg3-e5 7. Kf3-e3 e5-e4+ 8. Ke3-f3... (2010-8-18) comment | |
Keywords: Last Moves? (14), Non-standard material Genre: Retro Input: Gerd Wilts, 1995-6-3 Last update: Nikolai Beluhov, 2010-8-18 more... |
Michel Olausson 40 Springaren 03/1990  (9+15) h#1,5? b) -sBb5 | |
| hans: 1. ---- f5xg6ep. 2. Tg4xf4 g6-g7#?? La1 must be promoted piece, but there are 8 pawns so g7-g5 can't be last move, so the solution is illegal. In b) there are 7 pawns, so La1 can be promoted piece. But I think Michel overlooked the Towers. One also must be a promoted piece, if g7-g5 is the last move. So the solution is still illegal. But that's maybe the idea, there is no solution! (2010-6-28) comment | |
Genre: h#, Retro Input: Gerd Wilts, 1995-6-3 Last update: hpr, 1997-1-9 more... |
Josip Varga Nikolaev-200 JT 1989 6. Lob  (3+2) C+ -1(w+s), dann h#1 b) -sLg1 | a) R: 1. h2xLg3 Lb8xDg3, dann 1. Lga7 Df3# b) R: 1. Kh2xTh3 Th7xDh3, dann 1. Ta7 Dc8# |
| more ... comment | |
Keywords: Help retractor, Promotion Genre: Retro Computer test: Popeye Windows-32Bit v4.55 (312 MB) & Rawbats Input: Gerd Wilts, 1995-6-3 Last update: Gerd Wilts, 2010-8-21 more... |
William H. Reilly 1065 The Problemist FCS 12/1933  (2+1) + wB sT sL 5 sB IC | wB b2 sT c3 sL f2 sB a7c7e7g7d3 (B x Bep, vgl. 1208) |
| Ryan McCracken: This must be cooked -- sT can be on c3, c2 or c1; sL on f2 or e3. The composer must have thought that he needed Rc3-e3+ at some point, but missed that after -1...c4xd3ep+, there is no longer a double-check. (2007-12-8) Henrik Juel: No, Ryan, the position without bPd3 must be legal, requiring Re3-c3 to explain the double check. (2007-12-8) Ryan McCracken: Hmm. So that's not it. I heard this was cooked in a recent issue of the Problemist. Now I have to find the real cook... (2007-12-8) Ryan McCracken: This looks like it: add wBb2, sBc7b6a5a4a3 Tb7 La1 La1 is promoted, and last move was -1...a7xb6+. Black's 14 pawn captures + 3 white units showing = one too many units. Removing any white unit or black pawn cuts the number of caps needed by at least one in all cases. Removing Tb7 saves 2 captures. Removing La1 saves 5 captures. (2007-12-8) paul: See P1106553 (2010-6-12) comment | |
Genre: Retro Input: Gerd Wilts, 1995-6-3 |
Walter William Jacobs 911 The Problemist FCS 08/1933  (1+2) cooked Ergänze 2 sLL und 4 sBB zu einem IC! | sLa6d6 sBb5e5f7g7 (zuletzt: b7-b5, Kb8-c8, c7-c5) aber Kb8xT, Tc7-c8 nicht illegal! |
| Gunter Jordan: Ist die Stellung richtig? K an K ohne Märchenbedingung ist im IC nicht möglich!? (2010-6-2) Gerd Wilts: Ich tippe auf sKe7, dann ist die Autorlösung verständlich. (2010-6-3) comment | |
Keywords: Illegal Cluster Genre: Retro Input: Gerd Wilts, 1995-6-3 Last update: Gerd Wilts, 2010-6-3 more... |
Nikita Plaksin Caissas Schloßbewohner 1983  (11+14) r#1 Circe | |
| BU=Berolinabauern more ... comment | |
Keywords: Circe Pieces:  = Berolina Pawn,  = GrashopperGenre: Retro Input: Gerd Wilts, 1995-6-3 Last update: Gerd Wilts, 2010-8-19 more... |
Raymond Smullyan Die Schachgeheimnisse des Kalifen 1981  (14+15) Ein sL hat einen weißen Stein geschlagen. Welcher sL? | sLg4 hat wS geschlagen |
| Alfred Pfeiffer: Falsche Lösung. Richtige Antwort ist: sLe5 hat wL geschlagen. (2010-7-27) comment | |
Genre: Retro Input: Gerd Wilts, 1995-6-3 |
Raymond Smullyan Manchester Guardian 1957 1 Die Schachgeheimnisse des Kalifen 1981 (2) diagrammes 86 07-09/1988 (2) Die Schwalbe 234 12/2008  (1+3) Wo steht der wK? | +wKc3. R: 1. Kb3xBc3+ bxc3ep+ |
| Sally: W König auf : Kc3! Zuletzt geschah .Kb3 x Bc3+, Bb4 x c3 en passant,Bc2 -c4, L-d5#. Nach Branco Pavlovic: Sahovski Vjesnik 1950. (2010-7-10) Sally: S. 233 Sammelsurium (H. Kastner ) Humbold Buch) S. 152: 300 rompecabezas de Ajrdrez (Espana)L. Barden. S. 106 Eigenartige S. Probleme (W. Keym). S. 641 Schwalne Dez. 2008. (2010-7-19) Henrik Juel: The precursor by Pavlovic is P0001095 . (2010-7-19) comment | |
Keywords: Add pieces (K), En passant Genre: Retro Input: Gerd Wilts, 1995-6-3 Last update: Gerd Wilts, 2009-1-7 more... |
Raymond Smullyan 3b Die Schachgeheimnisse des Kalifen 1981  (12+10) Ersetze einen der Steine durch den wK, so daß die Stellung legal ist! | |
| Alfred Pfeiffer: Forderung ungenau. Exakt wäre: Ersetze einen anderen Stein als in der vorangegangenen Aufgabe 3a (P0003053) durch dem wK, so daß die Stellung legal ist. (2010-7-27) comment | |
Keywords: Add pieces Genre: Retro Input: Gerd Wilts, 1995-6-3 |
Raymond Smullyan 7 Die Schachgeheimnisse des Kalifen 1981  (12+13) Der schwarze Damenturm ist von einem Bauern geschlagen worden, der weiße Königsläufer wurde vorgegeben, Die beiden wT sind auf der selben Reihe geschlagen worden. Wo wurden die wTT geschlagen? | |
| Alfred Pfeiffer: Forderung unvollständig, es fehlt: S kann noch rochieren! (2010-7-27) comment | |
Keywords: Conditional problem Genre: Retro Input: Gerd Wilts, 1995-6-3 |
Raymond Smullyan 8 Die Schachgeheimnisse des Kalifen 1981  (14+13) Ist der Ta5 weiß oder schwarz? | |
| Alfred Pfeiffer: Forderungstext unvollständig. Zu ergänzen ist: Schwarz hat soeben rochiert, und es sind keine w UW-Figuren auf dem Brett. (2010-7-27) comment | |
Genre: Retro Input: Gerd Wilts, 1995-6-3 |
Raymond Smullyan 10 Die Schachgeheimnisse des Kalifen 1981  (14+14) Kein Bauer hat bisher mehr als einen Stein geschlagen, die Dh5 ist eine Originaldame. Zeige, daß sich die Farbe der Dh5 bestimmen läßt, wenn bekannt ist, daß sie auf ihrer eigenen Linie geschlagen worden ist! | |
| Alfred Pfeiffer: Letzte Satz der Forderung unpräzise. Richtig: Zeige, daß sich die Farbe der Dh5 bestimmen läßt, wenn bekannt ist, ob die fehlende Dame auf ihrer eigenen Linie geschlagen worden ist! (2010-7-27) comment | |
Keywords: Conditional problem Genre: Retro Input: Gerd Wilts, 1995-6-3 |
Raymond Smullyan 23 Die Schachgeheimnisse des Kalifen 1981  (12+10) Zwei der Springer haben die Farbe gewechselt. Welche Springer? | |
| Alfred Pfeiffer: Forderung genauer: Ein weißer und ein schwarzer Springer haben die Farbe getauscht. Welche Springer? (2010-7-27) comment | |
Genre: Retro Input: Gerd Wilts, 1995-6-3 |
Raymond Smullyan 29 Die Schachgeheimnisse des Kalifen 1981  (8+5) Einer der schwarzen Offiziere ist ein weißer Stein; welcher? Darf Schwarz rochieren? | |
| Alfred Pfeiffer: Diagrammfehler: Korrekt ist sKe8 (statt sKd8) (2010-7-27) Henrik Juel: (With sKe8) replacing sSa6 with wTa6 allows the retroplay -1.c5xPb5ep b7 -2.Tc6. If sK had not moved, wK could not have entered the top rows, so Black may not castle. (2010-7-28) comment | |
Genre: Retro Input: Gerd Wilts, 1995-6-3 Last update: Mario Richter, 2010-7-28 more... |
Manfred Zucker 3223 Schach 07/1959 3223 Schach 08/1959  (3+8) h#3 | 1. fxg3ep Se2 2. Tc4 Sg1 3. Tg4 Sf3# 1. fxg3ep Sxe2 2. Tc4 Sg1 3. Tg4 Sf3# |
| Sally: Hilfsmatt mit Reto Analyse : Der letzte Zug war. Bg2 - g4! S. 162 Ausgewählte S. Aufgaben (Zucker). (2010-8-23) comment | |
Keywords: En passant as key Genre: h#, Retro Input: Gerd Wilts, 1995-6-3 Last update: hpr, 1998-10-1 more... |
Yaakov Mintz 344 Canadian Chess Chat 11-12/1980  (4+15) cooked h#4 | 1. hxg3ep Lxb1 2. Kf5 fxe4 3. Kg6 e5+ 4. f5 exf5ep# NL: 1. hxg3ep fxe4 2. f6 e5 3. Kf5 exf6 4. Kg6 Lxb1# uvm |
| YM: The correct mechanism is in P1109109 (2010-7-13) comment | |
Keywords: En passant as key Genre: h#, Retro Input: Gerd Wilts, 1995-6-3 Last update: hpr, 1997-11-20 more... |
Laszlo Talaber 2285v FEENSCHACH 09-10/1954  (10+16) h#3* 0.1... | *) 1. ... ... 2. dxe3ep d4 3. cxd3ep Lc3# 1) 1. ... Lc3 2. Ke5 Txc4 3. Df4 Ld# |
| Paulo Roque: . Illegal Position (7 black pawns captures, but only 6 missing white pieces) (2010-7-1) comment | |
Keywords: En passant as key Genre: h#, Retro Input: Gerd Wilts, 1995-6-3 Last update: hpr, 1997-1-19 more... |
Valerian Onitiu 6643 Fairy Chess Review 02/1946  (14+11) h#2 | 1. ... fxg6ep# 1. dxe3ep fxe3# |
| hj: Stipulation should read 'h#1*', I think. White played bxPa...a7xb8=L. (2004-3-4) Gerald Ettl: Der rumänische Autor zeigt, dass der letzte Zug jeweils ein Doppelschritt g7g5 oder e2e4 gewesen sein muss. Die wBc6,d7 schlugen ueber Kreuz und der wUW-L hat bxaB und a7xXb8 geschlagen. Die Forderung lautet wohl h#1 (2010-7-12) comment | |
Keywords: En passant as key, Promotion (LL), Non-standard material Genre: h#, Retro Input: Gerd Wilts, 1995-6-3 Last update: Gerd Wilts, 2004-8-9 more... |
Johannes Manfred Wittlich 2073 Stella Polaris 12/1968 H.Fröberg 50 år  (12+12) h#3 Weiß zieht an | 1. ... Sc3 2. Kf5 Ld1 3. De5 Tf1# |
| Mario Richter: Last moves were: -0. ... c4xb3 e.p.+ -1.b2-b4 Rc3-d3+ (or Rd2-d3+). In the resulting position, bPh7 must have promoted on h1, so w0-0 is illegal. (2010-7-10) Henrik Juel: In the given solution, 3.De5 makes no sense. Poobably the stipulation should be h#1.5, with solution 1... Sc3+ 2.Kf5 Tf1#. (2010-7-11) Gerald Ettl: Ich sehe ein h#2: 1.-Sc3+ 2.Kf5 Tf1# (2010-7-11) Gerald Ettl: (Ich habe den Kommentar von Henrik Juel vorher nicht gesehen. Er sagt dasselbe wie ich) (2010-7-11) Mario Richter: I don't know, if the diagram is only misprinted, or if this is a version, which tries to correct the original problem. The original position in Stella Polaris No.4 1968 (December) was: 8/B1p1p3/pp1p2r1/b2PP1p1/P3k3/Pp1rP1P1/2B3P1/1b1NK2R w: Ba7 Pd5 Pe5 Pa4 Pa3 Pe3 Pg3 Bc2 Pg2 Nd1 Ke1 Rh1 b: Pc7 Pe7 Pa6 Pb6 Pd6 Rg6 Ba5 Pg5 Ke4 Pb3 Rd3 Bb1 with the intended solution: 1. ... Sc3+ 2.Kf5 Ld1 3.dxe5 Tf1# (not 0-0?) If this is a corrected version, then perhaps not only the position changed, but also the stipulation!? (With h#1.5, the problem is correct!) (2010-7-11) Henrik Juel: The original version, given by Mario, was cooked (in the forward play). The PDB version here is a correction given in Stella Polaris no. 2, June 1969, p. 39; in the correction, the stipulation was changed to 'h#2, Weiss zieht an' (or h#1.5), as we surmised. (2010-7-12) comment | |
Keywords: Cant Castler, Castling (wk) Genre: h#, Retro Input: Gerd Wilts, 1995-6-3 Last update: Mario Richter, 2010-7-11 more... |
Nenad Petrovic 299 problem 03/1953 173 32 personaggi e 1 autore 1955 (II) problem 61-64 07/1959 (85) problem 91-94 04/1964 (58) problem 144-147 12/1971 (6) diagrammes 112 01-03/1995 (7) Die Schwalbe 241 02/2010  (9+9) h#3 | 1. Td8 0-0-0 2. Td7 Tf1 3. Kd8 Tf8# |
| Sally: 4. ehr. Erw. 1953. Die Bauern konnten noch nicht schlagen!Die letzten Züge : wBa2-a3, aTxc8 Da8 (s. 000 unzulässig) Dxe4 La8 etc.oder wKxf1 Se1 (w.000 unzulässig)Sxf3 Se1 etc.Daher schließen sich die Rochaden! 1. 000 ?( 2.Td7, 3. Kd8), jetzt ist die w =000 unzulassig und ein Matt in 3# möglich. S. 372 Schwalbe Feb. 2010. (2010-6-22) comment | |
Keywords: Cant Castler, Castling (wgsg) Genre: h#, Retro Input: Gerd Wilts, 1995-6-3 Last update: Gerd Wilts, 2010-3-6 more... |
Henri Nouguier Jean Claude Dumont Jean-Claude Gandy RA24 diagrammes 18 11-12/1975 (59) Mat Plus 12 10-12/2009 Lob  (12+8) #2 | 1. dxc6ep |
| Mario Richter: The ep-key is not justified (last black move might have been Kf4xSe5). (2010-8-14) comment | |
Keywords: En passant as key, Promotion (l) Genre: Retro Input: Gerd Wilts, 1995-6-3 Last update: Gerd Wilts, 2010-6-15 more... |
Henri Nouguier RA60 diagrammes 26 03-04/1977  (12+15) #2 | |
| H Nouguier: 1.bxc6 ep ! (2.Fb6#). Une analyse pointilleuse permet de démontrer le double pas du pion noir c7-c5. (2003-12-24) Mario Richter: The e.p.-key is not justified, since there are several possible last moves by Black, e.g. simply Ra2-b2, or even Ne3-d1 a6xRb7. (2010-8-7) comment | |
Keywords: En passant as key Genre: Retro Input: Gerd Wilts, 1995-6-3 |
Andrej N. Frolkin RA91 diagrammes 32 03-04/1978 4. Preis  (12+13) #1 | |
| Mario Richter: Diagrammfehler? Die Stellung ist illegal - mehr weisse Bauern-Schläge (3) notwendig als schwarze B-schlagbare Steine fehlen. (2010-7-10) comment | |
Keywords: Whose move? Genre: Retro Input: Gerd Wilts, 1995-6-3 |
Andrej N. Frolkin 2020 diagrammes 88 01-03/1989 R243 The Problemist 11/1995 2. Preis  (14+12) Welches war der erste Zug des wBb2? | |
| AV: Je crois que l'énoncé est "Mat en un coup. Premier coup du Pb2 ?" Dans la position Rh8, Df8, Tg6 et h7, Fg7 et g8, Pa2, b2, c2, d3, e2, e7, f6 et g5 (14) / Rh5, Tg4, Ff7 et h4, Ch6, Pa7, b6, c7, d7, e6, f4, f5 et g3 (13) on joue : 1...Fe8 2.Ff7 b5 3.Dg8 b4 4.Ff8 b3 5.Rg7 a6 6.Dh8 a5 7.Fg8 Ff7 8.axb3 Fe8 9.b4 Ff7 10.b5 Fe8 11.b6 Ff7 12.b7 Fe8 13.b8C Ff7 14.Cc6 Fe8 15.Cd4 Ff7 16.Cb3 Fe8 17.Cd2 Ff7 18.Cf1 Fe8 19.b4!! [19.b3? Ff7 20.b4 Fe8 21.b5 Ff7 22.b6 Fe8 23.b7 Ff7 24.b8C Fe8 25.Ca6 Ff7 26.Cc5 Fe8 27.Ce4 Ff7 28.Cf2 Fe8 29.Ch1 a4 30.Ff7 mais le trait est aux Noirs et il n'y a pas de mat en 1 coup ] 19...Ff7 20.b5 Fe8 21.b6 Ff7 22.b7 Fe8 23.b8C Ff7 24.Ca6 Fe8 25.Cc5 Ff7 26.Ce4 Fe8 27.Cf2 Ff7 28.Ch1 Fe8 29.Ff7 a4 : il y a un mat 30.Thxh6# . Le premier coup du Pb2 fut 1 b2-b4! (2005-6-23) paul: Retract -1.Bg8-f7! Bf7-e8 -2-6.Sb8-f1 Be8-f7 -7.b7-b8=S Bf7-e8 -8-12.Sb8-h1 Be8-f7 -13 b6-b7 Bf7-e8 -14 b5-b6 Be8-f7 -15.b4-b5 Bf7-e8 16.b2-b4! Be8-f7 -17-21.b3-b8=S Bf7-e8 -22.a2xPb3 Be8-f7 -23. Bf7-g8 a5-a4 -24.Qg8-h8 a6-a5 -25. Kh8-g7 a7-a6 -26.Bg7-f8 b4-b3 -27.Qf8-f8 b5-b4 -28.Bg8-f7 Bf7-e8 -29.Qa8-f8. So, first move of wPb2 was b2-b4. I know that the second Prize for 1994-95 was attributed to P0005883 (P. Wong ? PG 21.5, judge T. le Gleuher) and this problem wasn?t classified. (2010-8-8) TBr: Paul, "2. Preis" seems to relate to diagrammes 1989 - in Problemist 1995 this problem was reprinted?! (2010-8-9) Harry Fougiaxis: This is a good chance (even if perhaps not the right place!) to ask the PDB admin team why the reprints/quotes are listed above the diagram, together with the source. Imho, this is a quite bad practice and it can create a lot of confusion. (2010-8-10) Gerd Wilts: Personally I like it very much to see the reprints directly above the diagram. Maybe a compromise would be to hide reprints by default and display them only after a click on a 'more...' link, as for hidden comments? (2010-8-17) Henrik Juel: I like that idea for a compromise, Gerd. (2010-8-17) comment | |
Keywords: First Move? Genre: Retro Input: Gerd Wilts, 1995-6-3 Last update: Gerd Wilts, 1996-6-16 more... |
Nenad Petrovic Fairy Chess Review 12/1946 (II) problem 10-12 12/1952  (12+12) 324 Züge | 324 Züge |
| Sally: FCR 7003. Okt. 1946. Ut. 151. S. 142 Anthony Dickins:Märschenschach. (2010-6-22) comment | |
Keywords: Einzügerrekord, Non-standard material Genre: Retro Input: Gerd Wilts, 1995-6-3 Last update: Gerd Wilts, 2004-8-9 more... |
William A. Shinkman Pittsburgh Post 1923 (III) problem 10-12 12/1952  (14+14) 412 Züge | 412 Züge |
| Erich Bartel: Nachdrucke: 1) Ultimate Themes 1938.--- 2) 8 Problem (106-108) V 1967.--- 3) 672 The Golden Argosy 1929.--- 4) A Guide to Fairy Chess 1967,S.42 (2007-12-25) Sally: S.143 Anthony Dickens: Märchenschach. (2010-6-19) comment | |
Keywords: Einzügerrekord, Non-standard material Genre: Retro Input: Gerd Wilts, 1995-6-3 Last update: Gerd Wilts, 2004-8-9 more... |
next 100 problems
Show statistic for complete result.
The problems of this query have been registered by the following contributors:
Gerd Wilts (100)