Die Schwalbe

117 problem(s) found in 4255 milliseconds (displaying 100 problem(s)). [COMMENTDATE>=20220810 AND NOT K='Rochade' AND S='StrateGems'] [download as LaTeX]

1 - P0583910
Oleksandr V. Shvichenko
Valery Gorbunov

StrateGems 10-12/2000
Lob
Abdurahmanovic-60-Jubiläumsturnier
P0583910
(2+6)
h#10
0.1...
1. ... Ke6 2. Dd5+ Kxd5 3. Kh8 Kc4 4. b5+ Kxb3 5. b4 Kxb2 6. b3 Kc3 7. b2 Kd4 8. b1=L Ke5 9. Lh7 Kf6 10. Tf7+ Kxf7#
play all play one stop play next play all
SCHRECKE: C+, popeye 4.87, option intelligent (2022-09-23)
comment

Genre: h#
FEN: 8/1r3K1k/1p6/8/8/1r6/1b4q1/B7
Input: hpr, 2001-08-10
Last update: hpr, 2001-08-10 more...
2 - P1000474
Andrey Frolkin
Mikhailo Kozulya

P0055 StrateGems 10 04-06/2000
Thomas Volet gewidmet
2. Preis
P1000474
(15+6) C+
BP in 17,5
1. e3 h5 2. Dg4 hxg4 3. Se2 Th3 4. Tg1 Tf3 5. gxf3 e5 6. Lg2 e4 7. fxe4 d5 8. exd5 Sc6 9. dxc6 Lb4 10. cxb7 Lc3 11. bxc3 Dd4 12. cxd4 Lf5 13. Sbc3 Kd7 14. Tb1 Te8 15. Tb2 Te5 16. dxe5 Sf6 17. exf6 Lh7 18. fxg7
play all play one stop play next play all
Weiße Bauern b2 und g2 schlagen diagonal über Kreuz nach g7 und b7.
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comment
Keywords: Unique Proof Game, Volet Pawn (2)
Genre: Retro
Computer test: C+ Euclide 1.11 in 16 Std. 23 Min. Keine Lösung in BP 16,5, Zeit 50 Min. C+ Stelvio 1.4 in 17 seconds.
FEN: 8/pPpk1pPb/8/8/6p1/2N1P3/PRPPNPBP/2B1K1R1
Reprints: feenschach 153 10-12/2003
Input: Gerd Wilts, 2000-08-01
Last update: A.Buchanan, 2023-08-30 more...
3 - P1000475
Michel Caillaud
P0056 StrateGems 10 04-06/2000
4. Preis
P1000475
(15+15) C+
BP in 18,5
1. a4 e5 2. a5 e4 3. Ta4 e3 4. Te4+ Se7 5. b4 Sbc6 6. Lb2 Sd4 7. Dc1 Sxe2 8. Lf6 Sg3 9. d4 Sgf5 10. Ke2 Sh6 11. Kf3 Shg8 12. Kg4 e2 13. Dh6 e1=S 14. Se2 Sd3 15. Sc1 Sc5 16. Ld3 Sa6 17. The1 Sb8 18. T1e3 a6 19. Txe7+
play all play one stop play next play all
Pronkin-Thema mit Platzwechsel: Sg8 wird auf e7 geschlagen, sSb8 wandert nach g8, umgewandelter sSe1 geht nach b8. Zyklischer Platzwechsel von sSb8, sSg8 und sBe7.
Henrik Juel: Partial testing with Natch 3.1
18.0 moves with sDTLSPe7 and wTd5; only sSe7 works (2018-12-14)
Mario Richter: @Henrik: Did you mean "... and wTe4"? (2018-12-15)
Henrik Juel: Yes, I did, Mario (2018-12-16)
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comment
Keywords: Unique Proof Game, Pronkin Theme (s), Interchange
Genre: Retro
Computer test: Computerprüfung: C+ Stelvio 1.2 04:02:35 Stunden. (hh:mm:ss) Keine Lösung BP 17.5, BP 18.0. Checked by Stelvio 1.2 in about 5 hours.
FEN: rnbqkbnr/1pppRppp/p4B1Q/P7/1P1P2K1/3BR3/2P2PPP/1NN5
Reprints: (7) Quartz 21 07-09/2002
feenschach 153, p. 201, 10-12/2003
Input: Gerd Wilts, 2000-08-01
Last update: A.Buchanan, 2023-05-30 more...
4 - P1000488
Thierry Le Gleuher
P0030 StrateGems 04-06/1999
Sam Loyd gewidmet
3. Preis
P1000488
(14+14) C+
BP in 25,5
1. d4 g5 2. Lf4 g4 3. Kd2 g3 4. hxg3 Sc6 5. Th6 Se5 6. Tb6 Sf3+ 7. exf3 axb6 8. Lc4 Ta3 9. Df1 Tc3 10. Sa3 h5 11. Te1 h4 12. Te6 h3 13. Tc6 dxc6 14. Ke2 Lf5 15. Le6 Da8 16. Lc8 e6 17. d5 Se7 18. d6 Sg6 19. d7+ Ke7 20. d8=T Th4 21. Td1 Sh8 22. Ta1 Kd8 23. Sb1 La3 24. Lc1 Tb4 25. Ld7 Le4 26. Dd1
play all play one stop play next play all
Hervorragend: Pronkin-Thema mit dem völlig eingeschlossenen wTa1, Switchback von Sb1, Lc1 und Dd1. Ein Rätsel im Geiste von Sam Loyd.
Henrik Juel: Natch 3.1 did nothing for an hour (2018-12-13)
Moldenhauer: Computerprüfung: C+ Stelvio 1.0 © Reto Aschwanden
33 Minuten, 1 Lösung, Notation OK.
Stelvio Histogramme/Strategien 40, vor der Lösung wegen der Lösezeit
mit Stelvio berechnet. (2023-02-08)
comment
Keywords: Unique Proof Game, Pronkin Theme (T), Switchback (SLD)
Genre: Retro
Computer test: Stelvio 1.0
FEN: q2k3n/1ppB1p2/1pp1p3/8/1r2b3/b1r2PPp/PPP1KPP1/RNBQ2N1
Reprints: feenschach 153 10-12/2003
A) Quartz 23 01-03/2004
H57 FIDE Album 1998-2000 2007
Input: Gerd Wilts, 2000-08-01
Last update: Silvio Baier, 2023-03-02 more...
5 - P1000505
Noam Livnat
P0043 StrateGems 07-09/1999
P1000505
(14+13)
KBP?
Hat Schwarz rochiert?
paul: Intention: 1.Sc3 f5 2.Se4 f4 3.Sg3 fg3 4.hg3 g5 5.Rh4 Bg7 6.Ra4 Bxb2 7.d4 h5 8.Bxg5 Sh6 9.e3 0-0! (9...Rf8? 10.Bc4 d6 11.Kf1 Bh3 12.Qxh5+ Kd7 13.Sh3??)10.Qxh5 Rf3 11.Bf4 Sc6 12.Qc5 Kf7 13.Sh3 Qh8 14.Bc4+ Ke8 15.Bg8 d5 16.Kf1 Be6 17.Kg1 Kd7 18.Kh1 Re8 19.Rg1 Kc8.
Cooked: 1.d3 g5 2.Bf4 Bg7 3.e3 h5 4.Qxh5 g4 5.Qc5 Bxb2 6.d4 Rh3 7.Bd3 f5 8.Bxf5 Rf3 9.Sh3 g3 10.0-0! d5 11.Sc3 Bxc3 12.Rb1 Be6 13.Rb4 Sh6 14.Ra4 Kd7 15.hxg3 Qh8 16.Bh7 Sc6 17.Bg8 Re8 18.Kh1 Bb2 19.Kg1 Kc8. (2010-07-02)
Henrik Juel: cooked, e.g.
1.Sb1-c3 Bg7-g5 2.Sc3-e4 Bg5-g4 3.Se4-g5 Bg4-g3
4.Sg1-f3 Bh7-h5 5.Bh2xg3 Bh5-h4 6.Th1xh4 Sb8-c6
7.Sg5-h3 Lf8-g7 8.Th4-a4 Lg7xb2 9.Bd2-d4 Sg8-h6
10.Dd1-d3 Bf7-f5 11.Dd3xf5 Th8-f8 12.Df5-c5 Tf8xf3
13.Lc1-f4 Bd7-d6 14.Be2-e3 Lc8-f5 15.Lf1-c4 Ke8-d7
16.Ke1-f1 Dd8-h8 17.Kf1-g1 Ta8-e8 18.Kg1-h1 Kd7-c8
19.Lc4-g8 Lf5-e6 20.Ta1-g1 Bd6-d5 (2018-12-13)
Henrik Juel: there even are shorter games, e.g.
1.Sb1-a3 Bg7-g6 2.Ta1-b1 Lf8-g7 3.Sg1-h3 Lg7xb2
4.Bd2-d4 Lb2xa3 5.Tb1-b4 La3-b2 6.Tb4-a4 Bf7-f5
7.Dd1-d3 Sg8-h6 8.Dd3xf5 Th8-f8 9.Df5-c5 Tf8-f3
10.Lc1-f4 Bd7-d5 11.Be2-e3 Lc8-e6 12.Lf1-d3 Ke8-d7
13.Ke1-f1 Dd8-h8 14.Kf1-g1 Bg6-g5 15.Ld3xh7 Bg5-g4
16.Lh7-g8 Bg4-g3 17.Bh2xg3 Sb8-c6 18.Kg1-h2 Ta8-e8
19.Th1-g1 Kd7-c8 20.Kh2-h1 (2018-12-13)
Moldenhauer: Computerprüfung: Cooked Stelvio 1.31 53 Sekunden.
Keine Lösung: BP 17.5.
Beispiel Stelvio: 1.Sa3 g5 2.Tb1 Lg7 3.Sh3 Lxb2 4.d4 Lxa3 5.Dd3 Sc6
6.Tb4 Sh6 7.Ta4 f5 8.Dxf5 Tf8 9.Dc5 Tf3 10.Lf4 Lb2 11.e3 d5 12.Ld3 Le6
13.0–0 Kd7 14.Kh1 Dh8 15.Tg1 Te8 16.Lxh7 g4 17.Lg8 g3 18.hxg3 Kc8
Schwarz hat nicht rochiert und KBP = 18.0. (2023-06-20)
comment
Keywords: Unique Proof Game
Genre: Retro
FEN: 2k1r1Bq/ppp1p3/2n1b2n/2Qp4/R2P1B2/4PrPN/PbP2PP1/6RK
Input: Gerd Wilts, 2000-08-01
Last update: A.Buchanan, 2012-04-15 more...
6 - P1000543
Thierry Le Gleuher
P0008v StrateGems Vol.1 10-12/1998
3. ehrende Erwähnung
P1000543
(14+15) C+
BP in 21,5
1. a4 f5 2. a5 Sf6 3. a6 bxa6 4. Ta3 Lb7 5. Tg3 Lf3 6. d3 Sc6 7. Lf4 Tb8 8. Ld6 exd6 9. gxf3 De7 10. Lh3 Df7 11. Lg4 Le7 12. Lh5 Ld8 13. Lg6 h5 14. Lh7 Da2 15. Lg8 Tb3 16. Lc4 d5 17. Dd2 Kf7 18. Db4 Te8 19. Db8 Te3 20. Lb5 Se5 21. Lc6 Se4 22. Lb7
play all play one stop play next play all
Lange, 10zügige Wanderung des wLf1.
Henrik Juel: Natch 3.1 did absolutely nothing in an hour (2018-12-12)
Moldenhauer: Computerprüfung: C+ Stelvio 1.11 07:04:17 Stunden. (hh:mm:ss)
Keine Lösung: BP 20.5, BP 21.0. (2023-03-16)
comment
Keywords: Unique Proof Game, Promenade (L)
Genre: Retro
Computer test: Stelvio 1.11
FEN: 1Q1b4/pBpp1kp1/p7/3pnp1p/4n3/1r1PrPR1/qPP1PP1P/1N2K1NR
Input: Gerd Wilts, 2000-08-01
Last update: Silvio Baier, 2023-03-20 more...
7 - P1000563
Michel Caillaud
Noam Livnat

P0019 StrateGems Vol.1 10-12/1998
3. Preis
P1000563
(16+15) cooked
BP in 21,5
1. c4 b5 2. Da4 b4 3. Db5 g6 4. a4 Lg7 5. Ta3 Kf8 6. Td3 d6 7. Txd6 a6 8. d3 Ta7 9. Lf4 Tb7 10. Le5 Tb6 11. f4 Tc6 12. Kf2 Tc5 13. Kg3 Td5 14. Kh4 Td4 15. g3 Te4 16. Lh3 Te3 17. Lg4 Tf3 18. Sh3 Tf2 19. Tf1 Tg2 20. Tf3 Tg1 21. Te3 Th1 22. Te4
play all play one stop play next play all
Treppenturm
Cook: Dual
7. ... Sa6 8. d3 Tb8 9. Lf4 Tb6 10. Le5 Tc6 11. f4 Tc5 12. Kf2 Td5 13. Kg3 Td4 14. Kh4 Te4 15. g3 Te3 16. Lh3 Tf3 17. Lg4 Tf1 18. Sh3 Te1 19. Tf1 Sb8 20. Tf3 Th1 21. Te3 a6 22. Te4 (Henrik Juel)
A.Buchanan: the authors fixed this in 1998 C+ with 1sbq1ksr/2p1ppbp/p2R2p1/1Q2B3/PpP1BP1K/3P1SP1/1P2P2P/R4S1r
16. Lg2 Te3 17. Le4 Tf3 18. Sd2 Tf2 19. Sgf3 Tg2 20. Ta1 Tg1 21. Sf1 Th1 (2023-02-04)
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comment
Keywords: Unique Proof Game, Staircase (t)
Genre: Retro
FEN: 1nbq1knr/2p1ppbp/p2R2p1/1Q2B3/PpP1RPBK/3P2PN/1P2P2P/1N5r
Reprints: feenschach 153, p. 195, 10-12/2003
H30 FIDE Album Annexe 1998-2000 2009
Input: Gerd Wilts, 2000-08-01
Last update: Alfred Pfeiffer, 2018-12-19 more...
8 - P1000946
Thierry Le Gleuher
v StrateGems 6 04-06/1999
Lob TT
P1000946
(15+15) C+
BP in 25,5
1. Sc3 Sf6 2. Se4 Sd5 3. Sf6 gxf6 4. h4 Lh6 5. Th3 Kf8 6. Tb3 Kg7 7. Tb6 Dg8 8. b4 Kf8 9. Lb2 Dg3 10. Le5 Db3 11. axb3 a6 12. Ta5 Ta7 13. Tab5 a5 14. e3 a4 15. Le2 a3 16. Lh5 a2 17. Dg4 a1=D+ 18. Ke2 Dd4 19. De6 Dg4+ 20. Kd3 Dg8 21. g4 Kg7 22. g5 Dd8 23. g6 Kf8 24. g7+ Ke8 25. g8=S Lf8 26. Sh6
play all play one stop play next play all
Pronkin-Thema mit der eingeschlossenen sD. Ein sS könnte a1 nicht mehr verlassen. Ein sT könnte h8 nicht mehr erreichen, und von a8 kann kein sT auf b3 geschlagen werden, da dazu der sBa7 zuerst nach a5 müsste und damit der wTa1 nicht mehr ohne Schlag des sBa nach b5 kann.
paul: Correction of P1000530 (2010-05-05)
Moldenhauer: Computerprüfung: C+ Stelvio 1.0 19:31:47 Stunden.
Keine Lösung: BP 24.5, BP 25.0. (2023-02-15)
comment
Keywords: Unique Proof Game, Phoenix (S), Pronkin Theme (d), Pure Round Trip (k), Tempo Loss (b1)
Genre: Retro
Computer test: Stelvio 1.0
FEN: 1nbqkb1r/rppppp1p/1R2Qp1N/1R1nB2B/1P5P/1P1KP3/2PP1P2/6N1
Reprints: H33 FIDE Album Annexe 1998-2000 2009
Input: Gerd Wilts, 2000-10-15
Last update: Silvio Baier, 2023-03-02 more...
9 - P1002846
Tode Ilievski
H0483 StrateGems 04-06/2001
Lob
P1002846
(3+4) C+
h#3
3.1...
1) 1. Kh6 Lc2 2. Dg8 Tb7 3. Dg5 Th7#
2) 1. Kh7 Lf7 2. De6 Tg2 3. Dh6 Lg8#
3) 1. Kf8 Tg2 2. De2+ Kc1 3. De7 Tg8#
play all play one stop play next play all
Yuri Bilokin: anticipated (P0575967) (2023-06-10)
comment

Genre: h#
Computer test: (Popeye WINDOWS-32Bit-Version 3.73 (2048 KB))
FEN: 7n/6k1/8/8/8/pB6/qR6/3K4
Input: hpr, 2002-03-02
Last update: hpr, 2003-01-18 more...
10 - P1003984
Kostas Prentos
R0097 StrateGems 18 04-06/2002
2. Lob
P1003984
(11+12) C+
BP in 17,0
1. d4 c6 2. Dd3 Db6 3. Dg6 Db3 4. axb3 hxg6 5. Ta6 Th3 6. Tb6 Tg3 7. hxg3 axb6 8. Th7 Ta2 9. Lh6 gxh6 10. e3 Lg7 11. La6 Le5 12. c4 Ld6 13. Sc3 La3 14. bxa3 Txf2 15. Sge2 d5 16. Kd2 Lh3 17. gxh3 bxa6
play all play one stop play next play all
4mal Überkreuzschlag (wBBa2b2 und g2h2, sBa7b7 und g7h7).
paul: The first 16.5 moves are unique (Euclide 0.96) (2010-07-05)
Henrik Juel: Natch 3.1 did not even find the solution in an hour (2018-12-16)
Moldenhauer: Computerprüfung: nachrichtlich C+ Stelvio 1.6 nach ca. 520 Std.
Natch 3.3 hat hier noch einen klaren Vorteil.
Stelvio wird ja weiter verbessert, wie ich bemerkt habe. (2023-10-02)
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comment
Keywords: Unique Proof Game, Cross-capture (4)
Genre: Retro
Computer test: KP: C+ Natch 3.3 (24 hours 32 min) I stopped Stelvio 1.0 after 93 hours of testing
FEN: 1n2k1n1/4pp1R/ppp3pp/3p4/2PP4/PPN1P1PP/3KNr2/8
Reprints: (89) Die Schwalbe 250A 08/2011
Input: Gerd Wilts, 2002-04-05
Last update: A.Buchanan, 2023-03-20 more...
11 - P1003986
Dan Meinking
R0099 StrateGems 18 04-06/2002
5.-7. Preis ex aequo
P1003986
(15+15) C+
BP in 20,0
1. g4 h5 2. Lg2 Th6 3. Le4 Td6 4. Lh7 g6 5. h4 Lg7 6. Th3 Ld4 7. Ta3 Lb6 8. c3 c5 9. Da4 Dc7 10. Dd4 Dc6 11. Dh8 Dh1 12. f3 f6 13. Kf2 Kf7 14. Sh3 Sh6 15. Dxc8 Dxc1 16. Dc6 Dc2 17. Ke1 Df5 18. De4 Sc6 19. Kd1 Th8 20. Kc1 Ke8
play all play one stop play next play all
Henrik Juel: Natch 3.1 did not find the solution in half an hour (2018-12-16)
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comment
Keywords: Unique Proof Game
Genre: Retro
Computer test: Computerprüfung: C+ Stelvio 1.0 01:37:02 Stunde. Keine Lösung: BP 19.0, BP 19.5.
FEN: 5k1r/pp1pp2B/1bnr1ppn/2p2q1p/4Q1PP/R1P2P1N/PP1PP3/RNK5
Reprints: feenschach 153, p. 209, 10-12/2003
Input: Gerd Wilts, 2002-04-05
Last update: A.Buchanan, 2023-03-01 more...
12 - P1004001
Michel Caillaud
R0093 StrateGems 17 01-03/2002
Gianni Donati gewidmet
2.-4. Preis ex aequo
P1004001
(16+16) C+
BP in 20,5
1. Sc3 e5 2. Sd5 Df6 3. Se7 d5 4. e4 Lf5 5. De2 Sd7 6. Da6 Td8 7. De6 Sb6 8. Dc8 Sh6 9. Sc6 Lb4 10. Da8 Lc3 11. Sb8 Td6 12. Lb5+ Kd8 13. Ld7 Tc6 14. Lc8 Tc5 15. Sd7 Dc6 16. Sf6 Te8 17. Sg4 Te6 18. Se3 Tg6 19. Sc4 Tg4 20. Sa3 Lg6 21. Sb1
play all play one stop play next play all
Spektakuläre Wanderung des wSb1 über e7 nach b8 und zurück zwecks Schachschutz.
Moldenhauer: Computerprüfung: C+ Stelvio 1.0 33:18 Minuten.
Keine Lösung BP 20.0, BP 19.5.
Bitte Notation richtigstellen: 19.Sc4 Tg5 (2023-02-13)
comment
Keywords: Unique Proof Game, Promenade (S), Capture-free
Genre: Retro
Computer test: Stelvio 1.0
FEN: Q1Bk4/ppp2ppp/1nq3bn/2rpp1r1/4P3/2b5/PPPP1PPP/RNB1K1NR
Reprints: feenschach 153 10-12/2003
Input: Gerd Wilts, 2002-04-05
Last update: Silvio Baier, 2023-03-02 more...
13 - P1004211
Dan Meinking
R0115 StrateGems 20 10-12/2002
1. Preis
P1004211
(12+14) C+
BP in 27,0
1. a4 Sc6 2. Ta3 Sd4 3. Tg3 Sb5 4. Tg6 hxg6 5. b3 Th3 6. Lb2 Te3 7. Lf6 e5 8. dxe3 Le7 9.
Dd6 cxd6 10. a5 Dxa5 11. Kd1 b6 12. Sf3 Lb7 13. Sfd2 Lf3 14. gxf3 Ld8 15. Lh3 Lc7 16. Le6
fxe6 17. Kc1 Kf7 18. Td1 Tf8 19. Sf1 De1 20. h4 a5 21. h5 a4 22. h6 a3 23. h7 a2 24. h8=T
a1=T 25. Th2 Ta7 26. Sc3 Sh6 27. Sa2 Kg8
play all play one stop play next play all
Henrik Juel: Natch 3.1 did little in an hour (2018-12-16)
Vladimir Rey: Fix: P0115 StrateGems; 10. a5 Dxa5+ (2023-01-21)
comment
Keywords: Unique Proof Game
Genre: Retro
Computer test: Stelvio 1.2, 58min
FEN: 5rk1/r1bp2p1/1p1ppBpn/1n2p3/8/1P2PP2/N1P1PP1R/2KRqN2
Reprints: feenschach 153 10-12/2003
Input: Gerd Wilts, 2002-10-05
Last update: Reto, 2023-05-10 more...
14 - P1004212
Nicolas Dupont
R0116 StrateGems 20 10-12/2002
P1004212
(16+12) C+
BP in 27,0
1. d4 Sc6 2. Le3 Se5 3. dxe5 Sf6 4. exf6 a6 5. fxg7 Ta7 6. Lxa7 Tg8 7. Le3 Th8 8. Lg5 Tg8 9. f4 Th8 10. Kf2 Tg8 11. Kg3 Th8 12. Kh4 Tg8 13. g3 Th8 14. Lh3 Tg8 15. Lg4 Th8 16. h3 Tg8 17. Th2 Th8 18. Tf2 Tg8 19. Tf3 Th8 20. Ta3 Tg8 21. Ta5 Th8 22. a4 Tg8 23. Ta3 Th8 24. Tc3 Tg8 25. Tcc5 Th8 26. c4 Tg8 27. Sc3 Th8
play all play one stop play next play all
Henrik Juel: Natch 3.1 produced nothing in half an hour (2018-12-16)
Moldenhauer: Computerprüfung: C+ Stevio 1.11 1 Sekunde.
Keine Lösung: BP 26.0, BP 26.5. (2023-03-30)
comment
Keywords: Unique Proof Game, Pendulum (t x22)
Genre: Retro
Computer test: Stelvio 1.2, 1sec
FEN: 2bqkb1r/1pppppPp/p7/R1R3B1/P1P2PBK/2N3PP/1P2P3/3Q2N1
Input: Gerd Wilts, 2002-10-05
Last update: Reto, 2023-05-19 more...
15 - P1004214
Gianni Donati
R0100c StrateGems 20 10-12/2002
5.-7. Preis ex aequo
P1004214
(11+15) C+
BP in 22,5
1. Sf3 e5 2. Sd4 exd4 3. Sc3 dxc3 4. dxc3 g6 5. Le3 Lh6 6. Lb6 axb6 7. Dd4 Ta5 8. Td1 Lc1 9. Td3 Tg5 10. Tf3 d5 11. Tf6 Lg4 12. Td6 Lxe2 13. Td7 La6 14. Lb5 h5 15. Lc6 Sxc6 16. a4 Db8 17. Te7+ Kd8 18. Te4 h4 19. De5 h3 20. Tb4 Th4 21. Tb3 Sb4 22. Ta3 c6 23. Ta1
play all play one stop play next play all
wTa1 wandert nach d7 zum Schachschutz für den wLf1. 12zügier Rundlauf des wTa1.
Moldenhauer: Computerprüfung: C+ Stelvio 1.0 5 Sekunden.
Keine Lösung: BP 21.5, BP 22.0. (2023-02-18)
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comment
Keywords: Unique Proof Game, Pure Round Trip (T), Check Protection
Genre: Retro
Computer test: Stelvio 1.0
FEN: 1q1k2n1/1p3p2/bpp3p1/3pQ1r1/Pn5r/2P4p/1PP2PPP/R1b1K2R
Reprints: feenschach 153 10-12/2003
Input: Gerd Wilts, 2002-10-05
Last update: Silvio Baier, 2023-03-02 more...
16 - P1004372
Dan Meinking
Kostas Prentos

P0118 StrateGems 21 01-03/2003
Spezialpreis
P1004372
(11+13) C+
BP in 17,5
1. h4 b6 2. h5 La6 3. h6 Ld3 4. hxg7 h5 5. gxf8=S Th7 6. Se6 fxe6 7. Sc3 Kf7 8. Sd5 exd5 9. Th4 Ke6 10. Tc4 dxc4 11. c3 Kd5 12. Db3 cxb3 13. a3 Kc4 14. Ta2 bxa2 15. exd3 Kb3 16. Le2 a1=L 17. Ld1 Ka2 18. b3
play all play one stop play next play all
Der schwarze K verfolgt den sBf7.
Kostas Prentos: This version is cooked: 1. h4 g5 2. hxg5 b6 3. Th5 La6 4. b3 Ld3 5. exd3 Lg7 6. Df3 Lxa1 7. Dxf7+ Kxf7 8. Le2 Ke6 9. Ld1 Kd5 10. Lb2 Kc5 11. Ld4 Kb4 12. Sc3 Ka3 13. g6 Kb2 14. a3 hxg6 15. Sa2+ Kxa2 16. Lb2 Th7 17. Lc1 gxh5 18. c3

A correction was published in StrateGems, 2018 (No.82/Pg.92, P0118v): PG 17,5:
1. h4 b6 2. h5 Lb7 3. h6 Lf3 4. hxg7 Sc6 5. gxf8=S Tb8 6. Se6 fxe6 7. Th5 Kf7 8. Td5 exd5 9. exf3 Ke6 10. Lc4 dxc4 11. c3 Kd5 12. Db3 cxb3 13. a3 Kc4 14. Ta2 bxa2 15. Ke2 Kb3 16. Kd3 a1=L 17. Se2 Ka2 18. b3 (C+) (2022-12-08)
more ...
comment
Keywords: Unique Proof Game
Genre: Retro
Computer test: Natch 3.1
FEN: rn1q2n1/p1ppp2r/1p6/7p/8/PPPP4/k2P1PP1/b1BBK1N1
Reprints: feenschach 153 10-12/2003
Input: Gerd Wilts, 2003-01-02
Last update: James Malcom, 2020-11-14 more...
17 - P1014020
Hans Peter Rehm
Bernd Ellinghoven
Hans Gruber

StrateGems 10-12/1998
1. Preis
P1014020
(10+9) C+
#3
1. Ta6! (2. Tb6+ Kxa3/Ka4 3. Ta7#)
1. ... Lxe7 2. Ofxd5+ Tf3 3. Ogxe3# (2. - Lxd5 3. Ld1#)
1. ... Txg6 2. Ofxe3+ Lf3 3. Ogxd5# (2. - Th2,Txe3 3. Ld1#)
play all play one stop play next play all
Orphans
more ...
comment

Genre: 3#
Computer test: A. Baumann: Alybadix
FEN: 5br1/2R1P2p/6P1/R2p2*3NB/7p/Pk2p*3N1r/5P2/1K5b
Input: Hans Gruber, 2004-05-01
Last update: Dieter Berlin, 2023-12-20 more...
18 - P1017175
Valery Surkov
Shakhmatnaya Kompozitsiya 09-10/2000
2. Allrussisches Match Ost-West
1.-3. Platz
P1017175
(10+8) C+
s#3
1. Tc4! droht 2. Kb5+ Kxd7 3. Ka5+ Sc6#
1. Tc4 f1=D 2. Db6+ axb6+ 3. Kd5+ Dxc4#
1. Tc4 f1=L 2. Kd4+ Lxc4 3. Dxa7+ Lxa7#
play all play one stop play next play all
more ...
comment

Genre: s#
Computer test: SCHRECKE: popeye 4.89
FEN: 1b1N4/p1kP1N2/Q4P2/2K1n1rr/Bp1RPB2/8/5p2/8
Reprints: StrateGems 2002
Input: Frank Müller, 2004-05-12
Last update: Dieter Berlin, 2024-03-12 more...
19 - P1017610
Michel Caillaud
Kevin James Begley

R0083 StrateGems 15 07-09/2001
2. ehrende Erwähnung
P1017610
(15+5)
Welches waren die letzten 7 Einzelzüge?
Circe Parrain
R: 1. 0-0[+wBc4]+ sBd4x[Dc3,Bc4]c3ep 2. c2-c4[+wDc3]+ b2xDc1=S[+sLb4] 3. Sb7xLa5[+wBc2] e5xBd4[+sLa5]+ 4. a5xLb6
play all play one stop play next play all
Michel Caillaud: cooked by Dmitry Baibikov :
3.Sb7xLa5(+wBa3) Kb4xPb5(+sLa5)+ -4.Ta5xLa4(+wSd3)+ e5xSd4 (2022-07-19)
Kevin Begley: correction: P1404688 (2022-09-27)
more ...
comment
Keywords: Circe (Parrain), Last Moves? (7), Valladao Task
Genre: Retro, Fairies
FEN: 8/8/PPp5/NkP5/RbP5/PBpN4/P4PP1/B1n2RK1
Input: Gerd Wilts, 2004-07-03
Last update: Kevin Begley, 2022-09-27 more...
20 - P1025062
Vyacheslav Kopaev
T0143 StrateGems 8 10/1999
P1025062
(11+12)
#2

BS Problemid: 9940
Authors: Kopaev, Viacheslav
Sources:
Years: 1999
Roland Ott: awarded version see P1025114 (2023-11-27)
Henrik Juel: C+ Popeye 4.61 (2023-11-27)
Henrik Juel: 1.Tff5 thr. 2.Sxf6# (2023-11-27)
comment
Keywords: Brian Stephenson Collection (9940)
Genre: 2#
FEN: 3Qn1B1/K2N4/p1pkPn2/N1pPR1Pp/b1pp1R2/2q5/1r5B/8
Input: Brian Stephenson, 2004-08-12
Last update: Roland Ott, 2023-11-27 more...
21 - P1025080
Luke Neyndorff
T85 StrateGems 5 01/1999
P1025080
(12+12)
#2

BS Problemid: 9958
Authors: Neyndorff, Luke
Sources:
Years: 1999
Henrik Juel: C+ Popeye 4.61 (2023-05-18)
Henrik Juel: solution 1.Sc4 zz (2023-05-18)
comment
Keywords: Brian Stephenson Collection (9958)
Genre: 2#
FEN: 4B3/3NKpp1/PPRN1pP1/pqrk1p2/bp6/1p1p1P2/1B1P4/4Q3
Input: Brian Stephenson, 2004-08-12
Last update: Roland Ott, 2023-05-18 more...
22 - P1025114
Vyacheslav Kopaev
T0143v StrateGems 8 10/1999
1. Preis
P1025114
(11+11)
#2

BS Problemid: 9992
Authors: Kopaev, Viacheslav
Sources:
Years: 1999
SCHRECKE: C+, popeye 4.89
1. Tdc4? droht 2. Sxf8#
1. ... Tg6 2. Tc2#
1. ... Dxh4 2. Tc1#
1. ... fxe4!
1. Tcc4! droht 2. Sxf8#
1. ... Tg6 2. Td2#
1. ... Dxh4 2. Td1#
1. ... fxe4 2. Txe4#
1. ... Sxe6 2. Dxe6#
1. ... Sg6 2. Dxg7# (2023-11-27)
comment
Keywords: Brian Stephenson Collection (9992)
Genre: 2#
FEN: 2K2n2/4Q1p1/2BpN3/3Pkp2/1P1RPp1N/2R1pp1b/5q2/B5r1
Input: Brian Stephenson, 2004-08-12
Last update: Roland Ott, 2023-11-27 more...
23 - P1026859
Nikolaj Bantusek
StrateGems 1999
P1026859
(5+3) C+
#4
1. Dg6! Kf4 2. Sd3+ Kf3 3. Kc2 Ke2 4. Dg2#
1. ... Ke2 2. Dg2+ Ke1 3. Kc2 ... 4. Sd3# 2. ... Kd1 3. Df1+ Kxd2 4. Se4#
1. ... Kf2 2. Kc2 Ke2 3. Dg2+ Ke1 4. Sd3# 2. ... Kf1,Kf3 3. Sd3 Ke2 4. Dg2#
play all play one stop play next play all
BS Problemid: 11740
Authors: Bantush, Nikolai
Sources:
Years: 1999
more ...
comment
Keywords: Brian Stephenson Collection (11740), Flight-giving key
Genre: n#
Computer test: R. Fay: Popeye Windows 4.69
FEN: 8/1p4p1/1B1Q4/2N5/8/1K3k2/3P4/8
Input: Brian Stephenson, 2004-08-12
Last update: Dieter Berlin, 2023-12-29 more...
24 - P1026907
Evgeny Bogdanov
StrateGems 2000
P1026907
(4+4)
#4

BS Problemid: 11789
Authors: Bogdanov, Evgeny M
Sources:
Years: 2000
Rosalie Fay: 1. Lc7 (droht 2. Ld6) f5/f6 2. exf6 (droht 3. Ld6) d5 3. Lxd5 zz h2 4. Lb6#;
1. ... Kh2 2. Kf2 f5 3. exf6 ep+ d6 4. Lxd6#; 2. ... d6 3. Lxd6 (droht 4. e6#) f5 4. exf6 ep#
1. ... d5 2. Lxd5 zz f5/f6 3. exf6 zz h2 4. Lb6#; 2. ... Kh2 3. Kf2 (droht 4. e6#) f5 4. exf6 ep#
En passant
C+ Popeye Windows-64Bit v4.69 (2023-12-29)
comment
Keywords: Brian Stephenson Collection (11789)
Genre: n#
FEN: B7/3p1p2/8/B3P3/8/7p/4K3/6k1
Input: Brian Stephenson, 2004-08-12
Last update: Felber, Volker, 2011-02-15 more...
25 - P1033848
Wieland Bruch
StrateGems 2000
P1033848
(14+12)
#2
1. Ld5? droht 2. De4#
1. ... Lxd5 2. Tcc3#
1. ... Le6!
1. Lc4? droht 2. De4#
1. ... Le6 2. Sxe6#
1. ... Ld5!
1. Lb3? droht 2. De4#
1. ... Ld5 2. Tc4#
1. ... Lc4!
1. Ld7! droht 2. De4#
1. ... Ld5 2. Tcc3#
1. ... Le6 2. Sxe6#
1. ... Sd6 2. Dxf6#
play all play one stop play next play all
Sally: 1. Ld5? (2. De4#)
1. ... - Lxd5, 2. Tcc3#; aber 1. - Le6!
1. Lc4? (2. De4#)
1. ... - Le6, 2. Sxe6#; aber 1. - Ld5!
1. Lb3? (2. De4)
1. ... - Ld5, 2. Tc4#; aber 1. - Lc4!

1. Ld7! (droht 2. De4#) - Ld5, 2. Tcc3#.
1. ... - Le6, 2. Sxe6#.
1. ... - Sd6, 2. Dxf6#.
Loschinski Farbenvertauscht (auch Magnet-Thema)
263 Von Ajec bis Zappas ( U. Degener 2012) (2016-11-03)
SCHRECKE: C+, popeye 4.87 (2022-08-23)
comment
Keywords: Brian Stephenson Collection (18764)
Genre: 2#
FEN: 2NKn2n/B1p1Qb2/2P1Bp2/pPR2PN1/3k1p2/R3bP2/P1P1p3/3rq3
Input: Brian Stephenson, 2004-08-12
Last update: Alfred Pfeiffer, 2016-11-04 more...
26 - P1033877
Gerhard Maleika
T0213 StrateGems 11 07/2000
1. Ehrende Erwähnung
P1033877
(10+11)
#2

BS Problemid: 18793
Authors: Maleika, Gerhard
Sources:
Years: 2000
Henrik Juel: C+ Popeye 4.61 (2023-08-29)
Henrik Juel: 1.Se3 thr. 2.Sg2,Sd5# (2023-08-29)
comment
Keywords: Brian Stephenson Collection (18793)
Genre: 2#
FEN: 8/1P1RppK1/2N2p2/5N2/3ppk2/r2P2RB/2b2B1P/2n1b2r
Input: Brian Stephenson, 2004-08-12
Last update: Roland Ott, 2023-08-29 more...
27 - P1046196
Darso James Densmore
Pittsburgh Gazette Times 03/12/1916
P1046196
(5+9)
#4
1. Lh6! Tf2 2. Sf3 Thxf3 3. Lf8+ Txf8 4. Txc3# 2. ... Tfxf3 3. Txc3+ Txc3 4. Lf8#
1. ... Td2 2. Sd3 Thxd3 3. Lf8+ Td6 4. Txc3# 2. ... Tdxd3 3. Txc3+ Txc3 4. Lf8#
play all play one stop play next play all
Henrik Juel: several duals, e.g., 1... Td2 2.Sd3 Tb2 3.Lf8,Txc3+ (2022-12-20)
comment
Keywords: Brian Stephenson Collection (31211)
Genre: n#
FEN: 8/1pp5/2b5/4N3/2Q2B2/k1p4r/p5rp/K1R5
Reprints: 95 Classic Chess Problems by Pioneer Composers , p. 57, 1970
StrateGems 2002
Input: Brian Stephenson, 2004-08-12
Last update: Dieter Berlin, 2022-12-20 more...
28 - P1046198
Darso James Densmore
Pittsburgh Gazette Times 31/12/1916
P1046198
(8+9)
#4
1. Ta2! Tf2 2. Le2 Tfxe2 3. Te8+ Txe8 4. Tc2# 2. ... T1xe2 3. Tc2+ Txc2 4. Te8#
1. ... Df1 2. Le2 Dxe2 3. Te8+ Dxe8 4. Tc2# 2. ... Txe2 3. Tc2+ Txc2 4. Te8#
1. ... Tf4 2. Se4 Tfxe4 3. Te8+ Txe8 4. Tc2# 2. ... Texe4 3. Tc2+ Tc4 4. Te8#
play all play one stop play next play all
Henrik Juel: duals 1... Dh3 2.Se3 De6 3.Te8+,Sxe6,Tc2+ (2022-12-20)
comment
Keywords: Brian Stephenson Collection (31213)
Genre: n#
FEN: 2k5/K2pR3/RB1p1r2/1p4N1/1p4N1/1P6/6n1/3Br2q
Reprints: StrateGems 1916
11c Allgemeine Zeitung Chemnitz 03/02/1929
96 Classic Chess Problems by Pioneer Composers , p. 57, 1970
1177 FIDE Album 1914-1944/II , p. 215, 1972
Input: Brian Stephenson, 2004-08-12
Last update: Dieter Berlin, 2022-12-20 more...
29 - P1046514
Adi Kosovac
T270 StrateGems 14 04/2001
P1046514
(8+5)
#2

BS Problemid: 31531
Authors: Kosovac, Adi
Sources:
Years: 2001
SCHRECKE: C+, popeye 4.89
1. Tc4! droht 2. Dc6#
1. ... Kxc4 2. Se3#
1. ... Txc4 2. Dd6# (2024-02-22)
comment
Keywords: Brian Stephenson Collection (31531)
Genre: 2#
FEN: 2R1N3/6b1/1Q6/B2k2nK/6N1/8/2r1P3/nB6
Input: Brian Stephenson, 2004-08-12
Last update: Roland Ott, 2024-02-22 more...
30 - P1052030
Darso James Densmore
Pittsburgh Gazette Times 26/11/1916
P1052030
(5+6) C+
#3
1. Dd2! droht 2. Dd8+
1. ... Ld4 2. c5+ Lxc5 3. Dd8#
1. ... Dd4 2. Dh6+ Df6 3. c5#
play all play one stop play next play all
more ...
comment
Keywords: Brian Stephenson Collection (37072), Pawn mate, Line closing, Deflection
Genre: 3#
Computer test: Juel: Popeye 4.61
FEN: K7/1B6/Nk6/pb6/2P3p1/8/Q7/b5q1
Reprints: 102 Classic Chess Problems by Pioneer Composers , p. 59, 1970
StrateGems 2002
Input: Brian Stephenson, 2004-08-12
Last update: Dieter Berlin, 2022-12-21 more...
31 - P1053185
Yosi Retter
Probleemblad 2001
ehrende Erwähnung
P1053185
(8+10)
r#2

BS Problemid: 38228
Authors: Retter, Yosef
Sources: The Problemist 2001
Probleemblad 2001
StrateGems 2001
Years: 2001

Duplicate Diagram: P1011573

Harry Fougiaxis: Duplicate of P1011573 (2008-08-08)
Henrik Juel: C+ Popeye 4.61 (2022-09-07)
Henrik Juel: 1.e8=T thr. 2.Da3 Tb1#
1... Tb1+ 2.Ka3 Dc1#
1... e1=S/L 2.Kc1/Ka1 (2022-09-07)
comment
Keywords: Brian Stephenson Collection (38228)
Genre: 2#
FEN: 5Q2/pkn1P3/4P3/p7/P7/2P1p3/PKN1p1pp/6rq
Reprints: The Problemist 2001
StrateGems 2001
Input: Brian Stephenson, 2004-08-12
Last update: James Malcom, 2022-09-08 more...
32 - P1058160
Darso James Densmore
V Pittsburgh Gazette Times 19/03/1916
3. Preis
P1058160
(7+12) C+
#3
1. Lb3! droht 2. Sxg6+
1. ... Tff6 2. Sc6+ Txc6 3. Df4#
1. ... Tgf6 2. Sf3+ Txf3 3. De6#
1. ... Dd6 2. Sc6+ Dxc6 3. Dd4#
1. ... Td6 2. Dd4+ Txd4 3. Sc6#
play all play one stop play next play all
more ...
comment
Keywords: Brian Stephenson Collection (43219), Deflection (vierfach), Knight sacrifice (dreifach), Queen sacrifice
Genre: 3#
Computer test: Juel: Popeye 4.61
FEN: 1N1q1r1n/4B3/pp4rp/4k3/2Q3RN/4p1pK/8/1b1Bb3
Reprints: 99 Classic Chess Problems by Pioneer Composers , p. 58, 1970
StrateGems 2002
Input: Brian Stephenson, 2004-08-12
Last update: Dieter Berlin, 2022-12-21 more...
33 - P1058806
Nikola Stolev
Meeting of Solidarity 2000
1. Preis 1998-2000
PR Y. Retter
P1058806
(9+10)
#2

BS Problemid: 43869
Authors: Stolev, Nikola
Sources: StrateGems 2002
Years: 2000
Henrik Juel: C+ Popeye 4.61 (2024-03-13)
Henrik Juel: 1.Se3 zz (2024-03-13)
comment
Keywords: Brian Stephenson Collection (43869)
Genre: 2#
FEN: 2b5/1pRpR3/1P1k1P2/pp6/1r1N2NK/B1n3n1/6Qb/8
Reprints: 3 StrateGems 17, p. 48, 01/2002
Input: Brian Stephenson, 2004-08-12
Last update: Roland Ott, 2024-03-13 more...
34 - P1061010
Walter Freiherr von Holzhausen
330 Rigaer Tageblatt 05/01/1908
7948 Deutsches Wochenschach 05/01/1908
Preis
P1061010
(8+9)
#4
1. La5! Td7 2. Lb4 Tee7,Tdd7 3. Ld2
1. ... Tf7 2. Ld2 Tee7,Tff8 3. Lb4
play all play one stop play next play all
Henrik Juel: duals like 1... Tb7 2.Lxb7 Te7 3.La6,Ld2,Lb4,Lc7+ (2023-08-20)
comment
Keywords: Brian Stephenson Collection (46089), Focus, Batterieabbau
Genre: n#
FEN: 4r3/p3r1p1/B3p1R1/1N1pk1P1/p2N1p2/P1B2K2/8/8
Reprints: 87 Brennpunktprobleme , p. 113, 1926
StrateGems 2002
Input: Brian Stephenson, 2004-08-12
Last update: Dieter Berlin, 2023-08-20 more...
35 - P1061023
Walter Freiherr von Holzhausen
7949 Deutsches Wochenschach 05/01/1908
331 Rigaer Tageblatt 05/01/1908
Preis
P1061023
(9+8)
#5
1. Lg8! Lxg8 2. Sc1 Df7 3. f4
play all play one stop play next play all
Henrik Juel: dual 3.f4 Db3+ 4.S5xb3,S1xb3+ (2023-08-24)
comment
Keywords: Brian Stephenson Collection (46103), Focus, Sacrifice key, Zugzwang-Goal, Bishop sacrifice
Genre: n#
FEN: rn6/p5qB/p1p5/k1N5/1R4P1/2PN1P2/b2P4/3K4
Reprints: 74 Brennpunktprobleme , p. 89, 1926
StrateGems 2002
Input: Brian Stephenson, 2004-08-12
Last update: Dieter Berlin, 2023-08-24 more...
36 - P1061024
Wilhelm Seib
8294 Deutsches Wochenschach 19/07/1908
P1061024
(8+12)
#5
1. Sc3! e1=D 2. Dxe1 Txe1 3. Sd5 Tae4 4. Sde7+ Txe7 5. Sd4#
1. ... g3 2. Dh4 Txh4 3. Sb5 Tee4 4. Sbd4+ Txd4 5. Se7#
play all play one stop play next play all
Henrik Juel: duals like 1... c1=D 2.Dxc1 Lxf5 3.Sxe2,Sb5+ (2023-08-25)
comment
Keywords: Brian Stephenson Collection (46104), Intersection Theme, Holzhausen (doppelt)
Genre: n#
FEN: 3R4/B1p2pp1/K1k1r3/p4N1P/r3N1p1/8/1np1p1P1/1b5Q
Reprints: 76 Brennpunktprobleme , p. 92, 1926
StrateGems 2002
Input: Brian Stephenson, 2004-08-12
Last update: Dieter Berlin, 2023-08-24 more...
37 - P1063486
Mykhailo Marandyuk

1/2 Preis
P1063486
(6+7)
#3

BS Problemid: 48575
Authors: Marandiuk, Mikhail
Sources: The Problemist 2002
StrateGems 2002
Years: 2001
Henrik Juel: C+ Popeye 4.61, except for some mate duals (2022-04-14)
Henrik Juel: 1.Db8 thr. 2.Td5
1... Tf2/Txe3/Tf4/Tg3 2.Sc4/Db6+/Dg8+/Dc8+
Rook cross (2022-04-14)
Teppo Mänttä: 1st-2nd Prize Moscow tourney 2001. (Shakhmatyana kompozitsiya 2001). (2022-10-15)
Teppo Mänttä: Shakhmatnaya (not Shakhmatyana). Reprint: B2 FIDE Album 2001-2003 (04/2011). (2022-10-15)
comment
Keywords: Brian Stephenson Collection (48575)
Genre: 3#
FEN: 8/4p3/p3kpP1/5p2/8/4Nr2/1K1RP2Q/5b2
Reprints: The Problemist 2001
15 StrateGems 19, p. 167, 07/2001
Input: Brian Stephenson, 2004-08-12
Last update: Roland Ott, 2022-04-14 more...
38 - P1063505
Anatoli G. Jepifanow
StrateGems 2001
1. Preis
P1063505
(3+5)
#4

BS Problemid: 48594
Authors: Epifanov, A
Sources: StrateGems 2002
Years: 2001
Rosalie Fay: 1. Ta1 (droht 2. Dd5+) Ke5 2. Te1+ Kd4 3. Kxb4 f5 4. Dd1#;
1. ... Kg6 2. Dg4+ Kf7 3. Ta7+ Kf8 4. Dc8#;
1. ... Ke6 2. De4+ Kd7 3. Ta7+ Kd8 4. Da8#; 2. ... Kf7 3. Ta7+ Kf8 4. Da8#
C+ Popeye Windows-64Bit v4.69 (2023-12-29)
comment
Keywords: Brian Stephenson Collection (48594)
Genre: n#
FEN: 8/8/R2p1p2/5k2/1p3p2/1K3Q2/8/8
Input: Brian Stephenson, 2004-08-12
Last update: Felber, Volker, 2011-03-24 more...
39 - P1064036
Martin Wessels
Die Schwalbe 169, p. 325, 02/1998
3. Preis Siegfried-Brehmer-Gedenkturnier 1996/97
PR Dieter Kutzborski
(Version mit sBh6 anstelle wBg4)
P1064036
(11+12)
#3

BS Problemid: 49126
Authors: Wessels, Martin
Sources: Die Schwalbe 2002
StrateGems 2003
Years: 1998
Henrik Juel: C+ Popeye 4.61 (2023-11-02)
Henrik Juel: 1.De1 thr. 2.Db1+
1... Kd5 2.Tc5+
1... bxc4,Lxc4 2.Dh1+
1... Dxb8 2.Sf6+
1... Df8 2.Sd2+ (2023-11-02)
comment
Keywords: Brian Stephenson Collection (49126)
Genre: 3#
FEN: 1B5q/n2B1b1N/r1n4p/Qp2r3/2Rpk1p1/RN2P1K1/1P2pP2/8
Reprints: Die Schwalbe 1998
? 1998
A StrateGems 22, p. 116, 04/1998
Input: Brian Stephenson, 2004-08-12
Last update: Roland Ott, 2023-11-02 more...
40 - P1066789
Göran Wicklund
R259 Probleemblad 5 09-10/2004
5. Preis
P1066789
(16+11) C+
BP in 29,5
1. h4 Sc6 2. h5 Sd4 3. h6 Sb5 4. hxg7 h5 5. Th3 h4 6. Tg3 h3 7. a4 h2 8. a5 h1=D 9. a6 Dh2 10. axb7 a5 11. bxa8=T Lb7 12. Ta4 Lc6 13. Th4 a4 14. d4 a3 15. d5 a2 16. d6 a1=S 17. dxc7 Sb3 18. Ta1 Sa3 19. c8=T La4 20. Ta8 Db8 21. f4 Kd8 22. f5 Kc7 23. f6 Kb6 24. fxe7 Sf6 25. e8=T Ld6 26. Tc8 Te8 27. g8=T Te7 28. Tge8 Lc7 29. Tgg8 Dd6 30. Th1
play all play one stop play next play all
Zyklischer Platzwechsel sechs weißer Türme.
more ...
comment
Keywords: Unique Proof Game, Non-standard material, Interchange (TTTTTT), Impostor (TT)
Genre: Retro
Computer test: Moldenhauer: Computerprüfung: C+ Stelvio 1.11 00:05:59 Minuten. (hh:mm:ss) keine Lösung: BP 28.5, BP 29.0.
FEN: RqR1R1R1/2bprp2/1k1q1n2/8/b7/nn6/1PP1P1P1/RNBQKBNR
Reprints: (18) StrateGems 10-12/2007
(80) Die Schwalbe 250A 08/2011
Input: Gerd Wilts, 2004-10-17
Last update: Silvio Baier, 2023-08-15 more...
41 - P1067420
Michel Caillaud
StrateGems 2001
1. Preis
P1067420
(12+16) C+
BP in 22,5
1. c4 h5 2. c5 Th6 3. c6 Txc6 4. a4 Txc1 5. Ta3 c5 6. Tc3 Da5 7. Sa3 Ta1 8. Tc1 Dc3 9. f4 a5 10. f5 Ta6 11. f6 Txf6 12. Sh3 b6 13. Sf4 La6 14. Kf2 Ld3 15. Ke3 Ta2 16. Sd5 Txf1 17. h4 f5 18. Th3 Th1 19. Tf3 Th2 20. Tf1 f4+ 21. Kf2 f3 22. Ta1 Lb1 23. Th1
play all play one stop play next play all
Rundlauf der beiden wTT.
Henrik Juel: Natch 3.1 made no progress after an hour (2018-12-15)
Moldenhauer: Computerprüfung: C+ Stelvio 1.0 3 Sekunden.
Keine Lösung: BP 21.5, BP 22.0. (2023-02-18)
comment
Keywords: Unique Proof Game, Pure Round Trip (TT)
Genre: Retro
Computer test: Stelvio 1.0
FEN: 1n2kbn1/3pp1p1/1p6/p1pN3p/P6P/N1q2p2/rP1PPKPr/Rb1Q3R
Reprints: feenschach 153, p. 201, 10-12/2003
Input: Gerd Wilts, 2005-01-09
Last update: Silvio Baier, 2023-03-02 more...
42 - P1068229
Roberto Osorio
Jorge Joaquin Lois

4921 Phénix 142 07-08/2005
P1068229
(14+13) C+
BP in 20,0
1. f3 c6 2. Kf2 Da5 3. Kg3 Dc3 4. dxc3 h5 5. Dd6 h4+ 6. Kg4 h3 7. Dc7 hxg2 8. Sh3 g1=D 9. Lg2 Db6 10. Dxc8+ Dd8 11. Dc7 Th5 12. Dg3 Db6 13. Td1 Dg1 14. Td6 Td5 15. Le3 g5 16. Sd2 Dxa1 17. Lc5 Dg1 18. La3 Db6 19. De1 Td4+ 20. cxd4 Dd8
play all play one stop play next play all
Henrik Juel: d2xDc3xTd4 was too tricky for Natch 3.1, which did not find the solution in half an hour
Stopped at pos. 917 (2018-12-22)
Moldenhauer: Computerprüfung: C+ Stelvio 1.0 00:08:50 Minuten.
Keine Lösung: BP 19.0, BP 19.5. (2023-03-01)
more ...
comment
Keywords: Unique Proof Game, Pronkin Theme (d), Promotion (d)
Genre: Retro
Computer test: Stelvio 1.0
FEN: rn1qkbn1/pp1ppp2/2pR4/6p1/3P2K1/B4P1N/PPPNP1BP/4Q3
Reprints: (6) StrateGems 10-12/2007
Input: Gerd Wilts, 2006-01-22
Last update: Silvio Baier, 2023-03-02 more...
43 - P1068641
Michel Caillaud
Moutecidis Fougiaxis Prentos Jubiläumst. 2006
1. Preis
K. Prentos 40 Jahre
P1068641
(12+12) C+
BP in 19,5
1. b4 h5 2. b5 h4 3. b6 Th5 4. bxa7 Sh6 5. axb8=T Taa5 6. d4 Tag5 7. d5 f5 8. d6 Sf7 9. dxe7 d5 10. c4 Kd7 11. e8=T Df6 12. c5 Lxc5 13. a4 Lb6 14. a5 c5 15. a6 Kc7 16. a7 Ld7 17. a8=L Lxe8 18. Ta7 Kxb8 19. Txb7+ Kxa8 20. Tb8+
play all play one stop play next play all
Bob Baker: C+ Stelvio 2.0 Solving time: 00:00:39 seconds (2024-02-28)
more ...
comment
Keywords: Unique Proof Game, Schnoebelen Theme (TTL), Anti-Pronkin (T), Prentos Theme (TTL), Ceriani-Frolkin Theme (TTL), Promotion (TTL)
Genre: Retro
Computer test: Natch 3.1 (3:58 h)
FEN: kR2b3/5np1/1b3q2/2pp1prr/7p/8/4PPPP/1NBQKBNR
Reprints: (2) StrateGems 10/2007
Input: Gerd Wilts, 2006-12-21
Last update: A.Buchanan, 2021-02-20 more...
44 - P1080373
Itamar Faybish
P0243 StrateGems 45 01-03/2009
P1080373
(7+16) C+
BP in 21,0
1. a4 Sc6 2. a5 Se5 3. a6 bxa6 4. b4 Lb7 5. b5 Db8 6. b6 axb6 7. c4 Da7 8. c5 0-0-0 9. c6 dxc6 10. h4 Txd2 11. Th3 Td7 12. Dd6 cxd6 13. Tg3 Kc7 14. Tg6 hxg6 15. g3 Th5 16. Lh6 gxh6 17. Lh3 Lg7 18. Le6 fxe6 19. f4 Sf7 20. f5 Sh8 21. f6 exf6
play all play one stop play next play all
Viermal Überkreuzschlag zweier schwarzer Bauern.
Henrik Juel: Natch 3.1 did nothing in an hour
Stopped while searching for pos. 1 (2018-12-27)
Moldenhauer: Computerprüfung: C+ Stelvio 1.11 00:02:40 Minuten. (hh:mm:ss)
Keine Lösung: BP 20.0, BP 20.5. (2023-03-12)
comment
Keywords: Unique Proof Game
Genre: Retro
Computer test: Stelvio 1.11
FEN: 6nn/qbkr2b1/pppppppp/7r/7P/6P1/4P3/RN2K1N1
Input: Gerd Wilts, 2009-01-03
Last update: Silvio Baier, 2023-03-20 more...
45 - P1080420
Thierry Le Gleuher
R284 Probleemblad 07-08/2005
P1080420
(14+13) C+
BP in 20,5
1. Sc3 f5 2. Sd5 Sf6 3. Sxe7 Sd5 4. Sg6 De7 5. a3 Dxa3 6. e4 d6 7. Se2 Kd7 8. Sc3 Kc6 9. Sb1 Sd7 10. Lb5+ Kxb5 11. e5 Ka4 12. e6 b5 13. e7 S7b6 14. exf8=S Ld7 15. Sxh7 Taf8 16. Sg5 Th4 17. Sh3 Tb4 18. Dg4 Le8 19. Dd4 f4 20. Sg1 Tf5 21. Sf8
play all play one stop play next play all
Henrik Juel: Cyclical shift by three white knights.
Sf8 is [Sb1], Sb1 is [Sg1], Sg1 is a promotee from f8 (2014-08-20)
Moldenhauer: Computerprüfung: C+ Stelvio 1.0 2 Sekunden.
Keine Lösung: BP 19.5, BP 20.0. (2023-03-02)
more ...
comment
Keywords: Unique Proof Game, Non-standard material
Genre: Retro
Computer test: Stelvio 1.0
FEN: 4bN2/p1p3p1/1n1p4/1p1n1r2/kr1Q1p2/q7/1PPP1PPP/RNB1K1NR
Reprints: (13) StrateGems 10-12/2007
Input: Gerd Wilts, 2009-01-06
Last update: Silvio Baier, 2023-03-03 more...
46 - P1080525
Andrey Frolkin
Kostas Prentos

P0190 StrateGems 34 2006
1. Lob
P1080525
(14+12) C+
BP in 26,5
1. f4 h5 2. f5 h4 3. f6 h3 4. fxe7 hxg2 5. exf8=L Th3 6. Lc5 Tg3 7. Lb6 axb6 8. h4 Taa3 9. h5 Tac3 10. bxc3 Dh4 11. La3 f6 12. Lf8 d6 13. h6 Lf5 14. h7 Ld3 15. exd3 Kf7 16. Df3 Kg6 17. Se2 g1=S 18. h8=T Sh3 19. Th5 Sf4 20. Tb5 Se6 21. Tb2 Db4 22. Th8 Sh6 23. Dg2 Kh5 24. Sc1 g6 25. Lg7 c5 26. Tf8 Sf7 27. Lh8
play all play one stop play next play all
Henrik Juel: Natch 3.1 did little in half an hour
Stopped at pos. 38 (2018-12-25)
Henrik Juel: Stelvio 1.31 used 18 seconds on my PC (2023-06-13)
more ...
comment
Keywords: Anti-Pronkin (TL), Ceriani-Frolkin Theme (L), Unique Proof Game, Non-standard material, Interchange (LT), Promotion (LsT)
Genre: Retro
Computer test: KP: C+ Stelvio 1.0 (14 seconds)
FEN: 1n3R1B/1p3n2/1p1pnpp1/2p4k/1q6/2PP2r1/PRPP2Q1/RNN1KB2
Input: Gerd Wilts, 2009-01-10
Last update: A.Buchanan, 2023-03-20 more...
47 - P1080540
Paul Raican
P0221 StrateGems 42 04-06/2008
1. Lob
P1080540
(16+14) C+
BP in 16,0
1. e3 a5 2. Dh5 Ta6 3. f3 Tc6 4. Kf2 Tc3 5. bxc3 c6 6. La3 Db6 7. Lxe7 c5 8. Sa3 Dg6 9. Tb1 f5 10. Tb6 Df7 11. Th6 b5 12. Lf6 b4 13. Lb5 Se7 14. Se2 Sg6 15. Ta1 De7 16. Ke1 Dd8
play all play one stop play next play all
paul: Quickly solved by Stelvio. (2023-03-12)
more ...
comment
Keywords: Unique Proof Game, Impostor (T)
Genre: Retro
Computer test: Euclide 0.95, Stelvio v1.11
FEN: 1nbqkb1r/3p2pp/5BnR/pBp2p1Q/1p6/N1P1PP2/P1PPN1PP/R3K3
Input: Gerd Wilts, 2009-01-11
Last update: A.Buchanan, 2023-03-13 more...
48 - P1080581
Roberto Osorio
Jorge Joaquin Lois

StrateGems 01-03/2006
P1080581
(15+12) C+
BP in 25,5
1. h4 f5 2. h5 Kf7 3. h6 Kg6 4. Sh3 Kh5 5. Sc3 g6 6. Sd5 Lg7 7. Sb4 Lf6 8. Sg1+ Lh4 9. Sf3 Sf6 10. e3 Dg8 11. Ke2 Db3 12. axb3 Tg8 13. Ta6 Tg7 14. Te6 dxe6 15. Sg1 Ld7 16. Kf3 Lb5 17. Le2 Sc6 18. Df1 Td8 19. Ld1 Td3 20. Se2 Sd4+ 21. Kf4 c6 22. exd4 Tg3 23. hxg7 Ld3 24. cxd3 h6 25. Lc2 Sh7 26. Sg1
play all play one stop play next play all
Silvio Baier: 1.h4 f5 2.h5 Kf7 3.h6 Kg6 4.Sh3 Kh5 5.Sc3 g6 6.Sd5 Bg7 7.Sb4 Lf6 8.Sg1+ Lh4 9.Sf3 Sf6 10.e3 Dg8 11.Ke2 Db3 12.ab Tg8 13.Ta6 Tg7 14.Te6 de 15.Sg1 Ld7 16.Kf3 Lb5 17.Le2 Sc6 18.Df1 Td8 19.Ld1 Td3 20.Se2 Sd4+ 21.Kf4 c6 22.ed Tg3 23.hg Ld3 24.cd h6 25.Lc2 Sh7 26.Sg1
Dreifache Rückkehr des Sg1 (2010-02-16)
Henrik Juel: Natch 3.1 did little in more than an hour
Stopped at pos. 1 (2018-12-25)
Vladimir Rey: Update: 2. Preis (source: feenschach 171 2008) (2022-07-28)
Moldenhauer: Computerprüfung: C+ Stelvio 1.0 16:43 Minuten.
Keine Lösung: BP 24.5, 25.0. (2023-02-14)
comment
Keywords: Unique Proof Game, Switchback (S)
Genre: Retro
Computer test: Stelvio 1.0
FEN: 8/pp2p1Pn/2p1p1pp/5p1k/1N1P1K1b/1P1P2r1/1PBP1PP1/2B2QNR
Reprints: StrateGems 10-12/2007
Input: Gerd Wilts, 2009-01-11
Last update: Silvio Baier, 2023-03-02 more...
49 - P1084240
James Soliman
P0244 StrateGems 46 04-06/2009
P1084240
(15+14)
BP in 13.0
1. c4 d5 2. Da4+ Sd7 3. Dc6 Sgf6 4. a4 Se4 5. Ta3 Sec5 6. Tf3 Sa6 7. d3 Sab8 8. Lh6 gxh6 9. g3 Lg7 10. Lh3 0-0 11. Txf7 Sf6 12. Lxc8 Kh8 13. g4 Sg8
play all play one stop play next play all
Henrik Juel: C+ by Natch 3.1 (8 s)
No solution in 12.5 (2018-12-27)
A.Buchanan: Good that you are checking for n-0.5. But why not check for n-1.0 & n-1.5: then it is certain that there is no shorter PG. (2018-12-27)
Henrik Juel: Good to hear from you again, Andrew
I started my Christmas testing project a couple of weeks ago
After testing lots of proof games in n, and making sure that n-.5 or n-1 moves had no solution, I noticed that in that sample n-1 moves never produced a solution, so, being a lazy slob, I now only check n-.5
Even your suggestion is not sufficient, as there exist constructed proof games with unique solutions in n and n plus several moves, but with 'regular' problems I believe that checking n-.5 almost always suffices
So far I have found a handful of cooks and just one example of a shorter solution than stipulated (2018-12-27)
A.Buchanan: If there is a solution in n moves, there are many solutions in n+2.0 moves: that is definite.
A reason for mindlessly testing as n-1.5,n-1.0,n-0.5 before testing for n is that one can catch many (but not all) cooks more easily.
From the solution in n, one can then see whether there might be the chance of an interesting solution in n+k, where k is not a multiple of 2.0. (2018-12-28)
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comment
Keywords: Unique Proof Game, Interchange (ss)
Genre: Retro
FEN: rnBq1rnk/ppp1pRbp/2Q4p/3p4/P1P3P1/3P4/1P2PP1P/1N2K1NR
Input: Gerd Wilts, 2009-04-03
Last update: A.Buchanan, 2023-12-24 more...
50 - P1097036
Satoshi Hashimoto
P0262 StrateGems 49 01-03/2010
3. ehrende Erwähnung
P1097036
(14+14) C+
BP in 24,5
1. Sc3 d5 2. Se4 Lh3 3. Sf6+ exf6 4. c4 Ld6 5. c5 Lf4 6. c6 Dd6 7. cxb7 c5 8. e4 c4 9. e5 c3 10. e6 c2 11. e7 Kd7 12. e8=S Se7 13. Sc7 Tc8 14. Sb5 Tc3 15. Sa3 Kc7 16. Sb1 cxb1=L 17. gxh3 Lf5 18. h4 Lc8 19. h3 Sd7 20. b8=S a5 21. Sc6 Tb8 22. Sd4 Tb4 23. Sc2 Td4 24. Sa3 Db4 25. Sb1
play all play one stop play next play all
Henrik Juel: Natch 3.1 did little in half an hour
Stopped at pos. 1 (2018-12-28)
Moldenhauer: Computerprüfung: Keine Lösung: BP 23.5, BP 24.0 (2023-04-19)
comment
Keywords: Unique Proof Game, Pronkin Theme (SSl)
Genre: Retro
Computer test: Stelvio 1.17, 10:05min
FEN: 2b5/2knnppp/5p2/p2p4/1q1r1b1P/2r4P/PP1P1P2/RNBQKBNR
Reprints: (9) Quartz 35 08/2010
60 64 Proof Games 2012
Input: Gerd Wilts, 2009-12-29
Last update: Reto, 2023-04-17 more...
51 - P1100794
Itamar Faybish
StrateGems 50 04-07/2010
für Liza
2. Preis, Good Companions Quick Composing Tourneys, 2010, Beweispartien
P1100794
(15+14) C+
BP in 21.0
1. a4 g5 2. Ta3 g4 3. Tc3 g3 4. Tc6 dxc6 5. Sf3 Lh3 6. gxh3 g2 7. Se5 g1=T 8. Sd7 Tg3 9. Lg2 Ta3 10. Ld5 Ta1 11. La2 e6 12. b3 Df6 13. La3 Db2 14. Lb4 f6 15. Sa3 Tb1 16. Sc4 Da3 17. c3 Tb2 18. Dc2 Kf7 19. Kd1 Kg7 20. Kc1 Tb1++ 21. Kxb1 Dc1+
play all play one stop play next play all
Henrik Juel: Natch 3.1 found the solution at pos. 2, but did not conclude in 6 hours
Stopped at pos. 215 (2018-12-28)
Moldenhauer: Computerprüfung: C+ Stelvio 1.11 00:36:23 Minuten. (hh:mm:ss)
Keine Lösung: BP 20.0, BP 20.5. (2023-03-12)
more ...
comment
Keywords: Unique Proof Game, Promenade
Genre: Retro
Computer test: Stelvio 1.11
FEN: rn3bnr/pppN2kp/2p1pp2/8/PBN5/1PP4P/B1QPPP1P/1Kq4R
Input: Gerd Wilts, 2010-02-26
Last update: Silvio Baier, 2023-03-20 more...
52 - P1100798
Andrey Frolkin
Kostas Prentos

StrateGems 50 04-06/2010
2. ehrende Erwähnung, Good Companions Quick Composing Tourneys, 2010, Beweispartien
P1100798
(13+12) C+
BP in 20,0
1. g4 a5 2. g5 a4 3. g6 Ta5 4. gxh7 Tg5 5. hxg8=S f5 6. Sf6+ exf6 7. Sc3 La3 8. Sd5 0-0 9. Se7+ Kh8 10. Sg8 De7 11. d4 Dc5 12. d5 d6 13. Dd4 Le6 14. dxe6 Sc6 15. e7 Sa5 16. exf8=T Sb3 17. Tf7 Sxa1 18. b3 Lb2 19. Se7 a3 20. Sc6 bxc6
play all play one stop play next play all
more ...
comment
Keywords: Anti-Pronkin (S), Ceriani-Frolkin Theme (S), Unique Proof Game, Promenade
Genre: Retro
Computer test: C+ by Natch 3.1 (7 s) No solution in 19.5 Computerprüfung: C+ Stelvio 2.0 1 Sek.
FEN: 7k/2p2Rp1/2pp1p2/2q2pr1/3Q4/pP6/PbP1PP1P/n1B1KBNR
Input: Gerd Wilts, 2010-02-26
Last update: A.Buchanan, 2024-02-12 more...
53 - P1102379
Joost de Heer
C0326 StrateGems 04-06/2010
P1102379
(6+7) cooked
ser-s#24
1. gxf8=T 2. Txf7 3. Tb7 4. f7 5. f8=T 6. Tf6 7. Tfb6 8. f6 9. f7 10. f8=T 11. Tf5 12. Txa5 13. f5 14. f6 15. f7 16. f8=T 17. Tf3 18. Tc3 19. f4 20. f5 21. f6 22. f7 23. f8=T 24. Tf2 Txa5#
play all play one stop play next play all
Cook: 1. Kb5 2. gxf8=T 3. Txf7 4. Ta7 5. Ta6 6. f7 7. f8=T 8. Tff6 9. Tfc6 10. f6 11. f7 12. f8=T 13. Td8 14. Td2 15. f5 16. f6 17. f7 18. f8=T 19. Tf3 20. Tc3 Tb4#
Joost de Heer: 1. gxf8=R 2. Rxf7 3. Rb7 5. f8=R 7. Rfb6 10. f8=R 12. Rxa5 16. f8=R 18. Rc3 23. f8=R 24. Rf2 Rxa5#

5 rook-promotions on the same square, zugzwang-selfmate. (2010-04-05)
SBD: Nice direct return of the f2 pawn as a rook to f2. (2010-04-06)
Joost de Heer: Cooked by Wilfried Seehofer, correction will appear in next SG. (2010-04-25)
Joost de Heer: Correction never appeared, as far as I know:

bPc4 to d4, -bSb3, +bBc3, solution unchanged (apart from 18. Rd3) (2012-07-31)
Joost de Heer: The correction is also cooked with a mate with the white king on a1. (2023-01-10)
comment
Keywords: Seriesmover, konsekutive Umwandlungen 5 (TTTTT)
Genre: Fairies
FEN: 5n2/5pP1/K4P2/p4P2/r1p2P2/kn6/5P2/8
Input: Frank Müller, 2010-04-02
Last update: Mario Richter, 2023-01-11 more...
54 - P1106666
Mario Parrinello
Kostas Prentos

P0265 StrateGems 50 04-06/2010
3. Lob
P1106666
(13+14) C+
BP in 21,5
1. f3 Sc6 2. Kf2 Sd4 3. Kg3 Sxe2+ 4. Kg4 Sg3 5. hxg3 Tb8 6. Th6 Ta8 7. Tb6 axb6 8. De2 Ta5 9. Da6 Ta3 10. bxa3 h6 11. Lb2 Th7 12. Lf6 Th8 13. Sc3 Th7 14. Te1 Th8 15. Te6 dxe6 16. Sge2 Dd3 17. Sd4 Dh7 18. Se4 Kd7 19. Lb5+ Kd8 20. Le8 Ld7 21. c3 Lc8 22. Sc6+
play all play one stop play next play all
more ...
comment
Keywords: Unique Proof Game, Switchback (ttl), Tempo Loss
Genre: Retro
Computer test: C+ by Natch 3.1 (17 s) No solution in 20.5 Computerprüfung: C+ Stelvio 1.6 in 4 Min. Notation ist mit Henriks Änderung richtig!
FEN: 2bkBbnr/1pp1pppq/QpN1pB1p/8/4N1K1/P1P2PP1/P2P2P1/8
Input: Gerd Wilts, 2010-06-03
Last update: A.Buchanan, 2024-02-12 more...
55 - P1106668
Gianni Donati
Olli Heimo
Joose Norri

P0267 StrateGems 50 04-06/2010
3. Preis
P1106668
(13+13) C+
BP in 23,0
1. a4 a5 2. Ta3 Ta6 3. Tf3 Tg6 4. Tf6 gxf6 5. b4 Lh6 6. b5 Le3 7. f4 La7 8. b6 Sa6 9. bxa7 b6 10. Kf2 Lb7 11. Ke3 Lf3 12. gxf3 Da8 13. Lh3 De4+ 14. fxe4 Sh6 15. Sf3 Tgg8 16. Dg1 Tf8 17. Dg4 Sg8 18. De6 fxe6 19. Tg1 Kf7 20. Tg5 Ta8 21. Td5 exd5 22. Le6+ Ke8 23. f5 Sb8
play all play one stop play next play all
Henrik Juel: Natch 3.1 did not find the solution in half an hour
Stopped at pos. 12 (2018-12-29)
more ...
comment
Keywords: Unique Proof Game, Pure Round Trip (t), Switchback (kss)
Genre: Retro
Computer test: Stelvio 1.11
FEN: rn2k1nr/P1ppp2p/1p2Bp2/p2p1P2/P3P3/4KN2/2PPP2P/1NB5
Input: Gerd Wilts, 2010-06-03
Last update: A.Buchanan, 2023-07-26 more...
56 - P1112262
Krzysztof Drazkowski
S0119 StrateGems 10-12/2000
P1112262
(7+3) cooked
s#32
1. Da3+! Ta2 2. Dc3+ Tb2 3. Td2 Ka2 4. Db3+ Ka1 5. Da3+ Ta2 6. Dc3+ Tb2 7. e5 Ka2 8. Db3+ Ka1 9. Da3+ Ta2 10. Dc3+ Tb2 11. e6 Ka2 12. Db3+ Ka1 13. Da3+ Ta2 14. Dc3+ Tb2 15. e7 Ka2 16. Db3+ Ka1 17. Da3+ Ta2 18. Dc3+ Tb2 19. e8=D Ka2 20. Df7+ Ka1 21. Se6 Ka2 22. Da5+ Kb3 23. Td3+ Kc4 24. Td4+ Kb3 25. Da4+ Kc3 26. Da3+ Tb3 27. Da1+ Tb2 28. Df5 Kb3 29. Sc5+ Kc3 30. Da3+ Tb3 31. Db1 Txa3 32. Da1+ Txa1#
play all play one stop play next play all
Cook: NL 20. Db3+ Ka1 21. Da3+ Ta2 22. Dc3+ Tb2 23. Sc2+ Ka2 24. De6+ Tb3 25. Da6+ Ta3 26. Da1+ Kb3 27. Dd3+ Ka4 28. D1d4+ Ka5 29. Dc5+ Ka4 30. Dd7+ Kb3 31. Sa1+ Txa1#
paul: This problem can be fixed with the new stipulation: s#31 (2022-11-10)
comment
Keywords: Tempo Winning Manouevre
Genre: s#
FEN: 5Q2/6p1/6P1/8/3NP3/4P3/7r/k1KR4
Input: Frank Müller, 2010-08-03
Last update: Marcin Banaszek, 2022-11-14 more...
57 - P1115687
Givi Mosiashvili
147 StrateGems 9 01/2000
P1115687
(5+2)
#2
1. Db1? (Zugzwang)
1. ... Kxd6,Kxf6 2. Db6,Df5#
1. ... e4!
1. De3? Kxd6,Kxf6 2. Db6,Dh6#
1. ... e4!
1. Dh1? Kxd6,Kxf6 2. Dd5,Dh6#
1. ... e4!
1. De4! (Zugzwang)
1. ... Kxd6,Kxf6 2. Dd5,Df5#
play all play one stop play next play all
A12DD1 MW
SCHRECKE: C+, popeye 4.87 (2023-03-23)
comment
Keywords: Miniature Collection (0238767)
Genre: 2#
FEN: 8/R7/3NkN2/4p3/8/8/8/K3Q3
Input: Felber, Volker, 2010-09-11
Last update: Alfred Pfeiffer, 2014-10-29 more...
58 - P1116539
Eligiusz Zimmer
169 StrateGems 10 04/2000
P1116539
(4+3)
#2
1. Le1? ... Kc1!;
1. Sf3? ... Kc1!;
1. Lg5! (Zugzwang) ... Kc1/Ke1/c2 2. Db1/De2/Dd2
play all play one stop play next play all
FE-S1D2
SCHRECKE: C+, popeye 4.87 (2023-03-28)
comment
Keywords: Miniature Collection (0238781)
Genre: 2#
FEN: 8/8/8/8/7B/2pQ4/K2n4/3k2N1
Input: Felber, Volker, 2010-09-11
Last update: Felber, Volker, 2010-09-11 more...
59 - P1117177
Vladimir Kozhakin
M20 StrateGems 3 07/1998
P1117177
(4+3)
#3
1. b4+
play all play one stop play next play all
EPs B12L m
SCHRECKE: C+, popeye 4.87
1. b4+! cxb3 e.p. 2. Lc4 b2 3. Txa6#
1. ... Kb5 2. Lb7 c3 3. Lxa6# (2022-11-21)
comment
Keywords: Miniature Collection (0346739), Miniature, Checking key, En passant
Genre: 3#
FEN: 8/8/p4R2/k2B4/2p5/K7/1P6/8
Input: Zuncke/Bruder, 2010-09-11
Last update: Gunter Jordan, 2022-11-21 more...
60 - P1118328
Eligiusz Zimmer
281 StrateGems 15 07/2001
P1118328
(4+3)
#2
1... Kd1 2. Dd3;
1. De3+? ... Kc2!;
1. De1+? ... Kc2!;
1. Sb4! (2. De1) ... Kc3/Sf3 2. Dd3/Dc2
play all play one stop play next play all
Kd1 MW
SCHRECKE: C+, popeye 4.87 (2023-03-28)
comment
Keywords: Miniature Collection (0239114)
Genre: 2#
FEN: 8/8/8/8/K2nQ3/8/Nb1k2N1/8
Input: Felber, Volker, 2010-09-11
Last update: Felber, Volker, 2010-09-11 more...
61 - P1118804
Robert J. Bales
M56 StrateGems 4 10/1998
P1118804
(4+2)
#5
1. Tg6
play all play one stop play next play all
Rosalie Fay: 1. Tg6 then subsequent duals.
C+ Popeye Windows-64Bit v4.69 (2023-12-20)
comment
Keywords: Miniature Collection (0346901)
Genre: n#
FEN: 8/P1k5/R2R4/K7/8/8/8/7b
Input: Zuncke/Bruder, 2010-09-11
Last update: Zuncke/Bruder, 2010-09-11 more...
62 - P1119685
Eligiusz Zimmer
196 StrateGems 11 07/2000
P1119685
(4+3)
#2
1. Tad5? (2. Td8) ... Sd5!;
1. Tab5? (2. Tb8) ... Sb5!;
1. Tc3? ... c5 2. Kb6, ... Kb8!;
1. Lc7? ... Sb5!;
1. Tb6! (Zugzwang) ... S~/cb6/c5 2. Kb5/Kb6/Tb8
play all play one stop play next play all
A18c2
SCHRECKE: C+, popeye 4.87 (2023-09-18)
comment
Keywords: Miniature Collection (0239102)
Genre: 2#
FEN: k7/2p5/K7/R3B3/8/1Rn5/8/8
Input: Felber, Volker, 2010-09-11
Last update: Felber, Volker, 2010-09-11 more...
63 - P1120782
Eligiusz Zimmer
224 StrateGems 12 10/2000
P1120782
(5+2)
#2
1. Se3? (2. Db4) ... d4 2. De7, ... Kd6!;
1. Sb6? ... Kd6!;
1. Dh8? (Zugzwang) ... Kc4/dc4 2. Dc3/De5, ... d4!;
1. De4? ... de4!;
1. Df6! (Zugzwang) ... Kc4/dc4/d4 2. Dc3/De5/Dc6
play all play one stop play next play all
C49
SCHRECKE: C+, popeye 4.87 (2023-09-18)
comment
Keywords: Miniature Collection (0239142)
Genre: 2#
FEN: 8/K2B4/8/2kp4/2N4Q/8/N7/8
Input: Felber, Volker, 2010-09-11
Last update: Felber, Volker, 2010-09-11 more...
64 - P1133703
Nikolay S. Zinovyev
M315 StrateGems 23 07/2003
P1133703
(5+2) C+
#10
1. Kd6! Kf5 1. ... Kf5 2. Ke7 Kf4 3. Ke6 Ke4 4. Lxc3 Kf4 5. Lf6 Ke4 6. Le2 Kf4 7. c3 Ke4 8. Lg7 Kf4 9. Lh6+ Ke4 10. f3#
2. Ke7 Ke4 3. Ke6 Kf4 4. Ld1 Ke4 5. Lxc3 Kf4 6. Ld2+ Ke4 7. f3+ Kd4 8. Kd6 Kc4 9. Le2+ Kd4 10. c3#
play all play one stop play next play all
BsL2 IM
more ...
comment
Keywords: Miniature Collection (0349241), Minimal (b), Miniature, Pawn mate (zweifach)
Genre: n#
Computer test: A. Baumann: Gustav 4.2a
FEN: 8/8/5B2/2K4B/5k2/2p5/2P2P2/8
Input: Zuncke/Bruder, 2010-09-11
Last update: Dieter Berlin, 2023-12-20 more...
65 - P1145683
Nikolay S. Zinovyev
M190 StrateGems 12 10/2000
P1145683
(4+3)
#11
1. La4 e3 2. Ld7 e2 3. Lg1 Kb8 4. Kxe2 Ka8 5. Kd3 Kb8 6. Kc4 Ka8 7. Kb5 Kb8 8. Lh2+ Ka8 9. Lc6 bxc6+ 10. Ka6 c5 11. b7#
play all play one stop play next play all
BfK
Anton Baumann: C+ Gustav 4.2a (2022-12-15)
comment
Keywords: Miniature Collection (0347780)
Genre: n#
FEN: k7/1p6/1P6/8/4p3/8/2B4B/4K3
Input: Zuncke/Bruder, 2010-09-11
Last update: Zuncke/Bruder, 2010-09-11 more...
66 - P1149222
Herb Holden
M0608 StrateGems 37, p. 22, 01/2007
P1149222
(5+1)
#4
1. Lb3 Kb5 (1... Ka6 2. La4 Kb6 3. Sc4+ Ka6 4. b5#) 2. Td6 Kxb4 3. Tb6+
play all play one stop play next play all
ST-S2S2+ 3m
Roland Ott: Vorgänger P1141395 (2023-07-08)
Henrik Juel: C+ Popeye 4.61, except for the mate dual 3.Tb6+ Kc3 4.Sd1,Sa4# (2023-07-08)
comment
Keywords: Miniature Collection (0349710)
Genre: n#
FEN: 8/3R1B2/1k6/8/1P6/4K3/1N6/8
Input: Zuncke/Bruder, 2010-09-12
Last update: Roland Ott, 2023-07-08 more...
67 - P1153953
Edgar D. Holladay
StrateGems 16 10/2001
P1153953
(4+2)
#5
b) wSe2->b4
a) 1. Td4;
b) 1. Tf3
play all play one stop play next play all
A12SS3 e568 4m
vf: a1<>h1, Miroslav Havel, 26.03.1919, Zlata Praha
Rosalie Fay: a) 1. Td4 zz Kf5 2. Tb4 (droht 3. Kf7) Ke6 3. Tb5 zz Kd6 4. Le5+ K~ 5. Sd4#

2. ... Kg6 3. Tb5 zz Kh6 4. Kf7 Kh7 5. Th5#
3. ... Kh7 4. Th5+ Kg6 5. Sf4#; 4. ... Kg8 5. Th8#

b) 1. Tf3 (droht 2. Tf6#) Kd6 2. Ld4 (droht 3. Kd8) Kc7 3. Tf7+ Kc8 4. Sa6 ~ 5. Tc7#
3. ... Kd6 4. Kd8 ~ 5. Tf6#
3. ... Kb8 4. Sa6+ Ka8 5. Ta7#; 4. ... Kc8 5. Tc7#
C+ Popeye Windows-64Bit v4.69 (2023-12-20)
comment
Keywords: Miniature Collection (0348154)
Genre: n#
FEN: 4K3/8/4k3/8/8/1p1R4/1B2N3/8
Input: Zuncke/Bruder, 2010-09-12
Last update: Zuncke/Bruder, 2010-09-12 more...
68 - P1169815
Nikolay S. Zinovyev
M304 StrateGems 22 04/2003
P1169815
(5+2) C+
#10
1. Kg1 Kg4 2. Kf2 Kh5 3. Ke2 Kg4 4. Ke3 Kh5 5. Ke4 Kg4 6. Sg8 Kh5 7. Se5 Kg5 8. g4 Kh4 9. Sf3+ Kxg4 10. Sf6#
play all play one stop play next play all
SsS1 IM TEK
more ...
comment
Keywords: Miniature Collection (0349227), Minimal (b), Miniature
Genre: n#
Computer test: A. Baumann: Gustav 4.2a
FEN: 8/4NN2/8/7k/8/6Pp/7P/7K
Input: Zuncke/Bruder, 2010-09-12
Last update: Dieter Berlin, 2024-02-08 more...
69 - P1177431
James Soliman
P0286 StrateGems 52 10-12/2010
P1177431
(12+14) C+
BP in 24,0
1. Sf3 Sc6 2. Se5 Sd4 3. Sc6 Sxe2 4. Sb8 Sc3 5. dxc3 f6 6. Lh6 gxh6 7. Lc4 Lg7 8. Lf7+ Kf8 9. Dd5 De8 10. Sd2 Dd8 11. 0-0-0 De8 12. The1 Dd8 13. Te6 De8 14. Tb6 axb6 15. Se4 Ta3 16. bxa3 Dd8 17. Kb2 De8 18. Kb3 Dd8 19. Ka4 De8 20. Db3 Dd8 21. Td6 cxd6 22. g4 Dc7 23. g5 Dc5 24. g6 Da5#
play all play one stop play next play all
Silvio Baier: Wenn nur die Switchbacks der Dame im Vordergrund stünden, gingen auf jeden Fall auch noch 2 mehr, also 14 Tempozüge: 13. Te4 De8 14. Th4 Dd8 15. Se4 De8 16. Td4 Dd8 17. Ta4 De8 18. c4 Dd8 19. c3 De8 20. Kc2 Dd8 21. Kb3 De8 22. Ka3 Dd8 (2023-11-14)
more ...
comment
Keywords: Unique Proof Game, Pendulum (d x10)
Genre: Retro
Computer test: Stelvio 1.11 00:09:11 Minuten. (hh:mm:ss)
FEN: 1Nb2knr/1p1ppBbp/1p1p1pPp/q7/K3N3/PQP5/P1P2P1P/8
Input: Gerd Wilts, 2010-09-28
Last update: James Malcom, 2023-05-02 more...
70 - P1192105
Tibor Ersek
C0390 StrateGems 04-06/2011
P1192105
(6+13)
ser-s=13
1. Tb2 2. Kb6 3. Kc7 4. Kd6 5. Ke5 6. d6 7. Le6 8. Sd5 9. Sxc3 10. Sxe2 11. Tc4 12. Tg4 13. Tg3+ hxg3=
play all play one stop play next play all
Anton Baumann: C+ Gustav 4.2a (30h 42') (2023-05-26)
more ...
comment
Keywords: Seriesmover
Genre: Fairies
FEN: b3r3/3pN2n/1R4p1/K1pP4/2B4p/2p2k2/4pp2/b1R1r3
Input: Frank Müller, 2011-04-09
Last update: Alfred Pfeiffer, 2020-03-05 more...
71 - P1198593
Milomir Babic
C0402v StrateGems 07-09/2011
Lob
P1198593
(6+9) cooked
ser-s#22
Korrektur in 01-03/2012, Seite 28.
1. h8=T 2. Th7 3. Txf7 4. Th7 5. f7 6. fxg8=L 7. Lxd5 8. Lxf3 9. d5 10. d6 11. d7 12. d8=L 13. Lxc7 14. Lh2 15. c7 16. cxb8=L 17. Lxa7 18. Lag1 19. a7 20. a8=D 21. Dd8 22. Le4+ Lxe4#
play all play one stop play next play all
Cook: 1. h8=T 2. Th7 3. Txf7 4. Txc7 5. f7 6. Txa7 7. c7 8. cxb8=L 9. f8=L 10. Th7 11. a7 12. a8=L 13. Lxd5 14. Lxf3 15. d5 16. d6 17. d7 18. d8=L 19. Lh2 20. Lc5 21. Lcg1 22. Le4+ Lxe4# mit vielen Dualen
Arnold Beine: Die Korrektur reicht noch nicht. Es geht auch ohne D-Umwandlung und ohne den sSg8 zu schlagen. (2022-10-21)
comment
Keywords: Seriesmover, konsekutive Umwandlungen 5 (TLLLD)
Genre: Fairies
FEN: 1n4n1/p1r2p1P/P1P2Pk1/3p4/3P4/5p2/8/1b5K
Input: Frank Müller, 2011-07-01
Last update: Arnold Beine, 2022-10-21 more...
72 - P1214071
Kostas Prentos
Andrey Frolkin

P0315 StrateGems 56 2011
7. ehrende Erwähnung
P1214071
(15+14) C+
BP in 20,0
b) Schwarz nimmt die Rochade zurück, dann BP in 19,5
a) 1. a4 h5 2. Ta3 h4 3. Tb3 Th5 4. Tb6 axb6 5. g4 Taa5 6. gxh5 Tg5 7. a5 e5 8. a6 Lc5 9. a7 d6 10. a8=T Lg4 11. Ta1 Lf3 12. exf3 e4 13. La6 e3 14. d3 e2 15. Lf4 Kf8 16. Kd2 e1=T 17. Sa3 Te8 18. De2 Se7 19. Td1 Kg8 20. Kc1 Tf8
b) 1. a4 h5 2. Ta3 h4 3. Tb3 Th5 4. Tb6 axb6 5. g4 Taa5 6. gxh5 Tg5 7. a5 e5 8. a6 Lc5 9. a7 d6 10. a8=T Lg4 11. Ta1 Lf3 12. exf3 e4 13. La6 e3 14. d3 e2 15. Lf4 Se7 16. Kd2 e1=T 17. Sa3 Te6 18. De2 Th6 19. Td1 Th8 20. Kc1
play all play one stop play next play all
Moldenhauer: Computerprüfung: a) C+ Stelvio 1.0 72 Sekunden.
Keine Lösung: BP 19.0, BP 19.5. (2023-03-02)
Moldenhauer: Computerprüfung: b) C+ Stelvio 1.0 61 Sekunden.
Keine Lösung: BP 18.5, BP 19.0.
FEN b): 1n1qk2r/1pp1npp1/Bp1p4/2b3rP/5B1p/N2P1P2/1PP1QP1P/2KR2NR (2023-03-02)
more ...
comment
Keywords: Unique Proof Game
Genre: Retro
Computer test: Stelvio 1.0
FEN: 1n1q1rk1/1pp1npp1/Bp1p4/2b3rP/5B1p/N2P1P2/1PP1QP1P/2KR2NR
Input: Gerd Wilts, 2011-10-15
Last update: Silvio Baier, 2023-11-14 more...
73 - P1227331
Israel Tzur
C0411 StrateGems 10-12/2011
Rasa gewidmet
2. Preis
P1227331
(4+11) C+
ser-s#11
2 Lösungen
1. Txg6 2. Txg7 3. Txf7 4. Txf5 5. Txe5 6. Kd4 7. Kxd5 8. Ke6 9. Tc5 10. Ld5 11. Tc8+ Lxc8#
1. Lxd5 2. Kxc4 3. Kb4 4. Ka5 5. Kxa6 6. Kb7 7. Kc8 8. Tb8 9. b6 10. b7 11. Lc6+ Txc6#
play all play one stop play next play all
paul: Tested also by Gustav (1min) (2022-10-04)
comment
Keywords: Seriesmover
Genre: Fairies
Computer test: Popeye WINDOWS-32Bit V4.37 (365544 KB)
FEN: 4kr2/4ppn1/bR4r1/1P1ppp2/2n5/3K4/8/7B
Input: Frank Müller, 2011-12-17
Last update: Frank Müller, 2013-01-06 more...
74 - P1235545
David A. Durham
S0129 StrateGems 01-03/2001
P1235545
(16+11) cooked
s#11
b) +sTc6
a) 1. bxc3+ Kc5 2. b4+ Lxb4 3. cxb4+ Kd4 4. Lb2+ axb2 5. c3+ Ke5 6. Sg4+ Kf5 7. Lxd3+ Se4 8. Sh6+ Ke5 9. Dd5+ Kxd5 10. Sxe3+ Ke5 11. Shg4+ Lxg4#
7. ... Te4 8. Dd5+ Kg6 9. h5+ Kxh5 10. Th1+ Kg6 11. Lxe4+ Lf5#
DL 7. Lxd3+ Te4 8. Dd5+ Kg6 9. h5+ Kxh5 10. Th1+ Kg6 11. Lxe4+ Lf5#
b) 1. bxa3+ Kc5 2. b4+ Lxb4 3. axb4+ Kd4 4. dxe3+ Ke5 5. f4+ Ke4 6. cxd3+ Kf5 7. e4+ Kg6 8. h5+ Kxh5 9. g4+ Kg6 10. f5+ Sxf5 11. exf5+ Lxf5#
play all play one stop play next play all
paul: Actually, this s#11 is Gustav+ (brute force) (2024-02-24)
comment

Genre: s#
FEN: 1qb3K1/4r3/R2n4/bp4P1/1k5P/pPpppPP1/QPPP2NN/1RB2B2
Input: Frank Müller, 2012-03-31
Last update: Frank Müller, 2012-03-31 more...
75 - P1242068
Michel Caillaud
C003 StrateGems (20) 10-12/2002
3. Preis
Richter: Jeremy Morse
P1242068
(4+6) C+
ser-h=9
1. g2-g1=D 2. Dg1-g7 3. f2-f1=S 4. Sf1-d2 5. Kb1-c1 6. b2-b1=T 7. Dg7-a1 8. Kc1-b2 9. c2-c1=L Dh6-h2=
play all play one stop play next play all
Joost de Heer: P1102790 was published a few months before this. (2023-07-28)
comment
Keywords: Seriesmover, Allumwandlung
Genre: Fairies
Computer test: %Popeye FreeBSD-4.3-RELEASE-32Bit-Version 3.7
FEN: 8/8/1K5Q/1N6/8/8/ppp2pp1/1k1B4
Input: Erich Bartel, 2012-06-17
Last update: Alfred Pfeiffer, 2017-08-10 more...
76 - P1242073
Joost de Heer
C0083 StrateGems (23) 07-09/2003
1.e.Erw., Richter: Unto Heinonen
P1242073
(4+6) C+
ser-h=17
1. f1=T! 3. Ta2 4. d2 5. f1=L 7. Lb1 8. c2 9. d1=D 11. Da1 15. d1=S 16. Sb2 17. Ka3 Tb5=
play all play one stop play next play all
Joost de Heer: Typo in solution: 1. d1T (2024-01-29)
comment
Keywords: Seriesmover, Allumwandlung
Genre: Fairies
Computer test: V. Kotesovec: Popeye Windows-64Bit v4.61 (2048 MB) (Zeit = 1:10:16 h:m:s)
FEN: 8/8/8/3p1R2/1k6/1Ppp4/3p1p1K/2B5
Input: Erich Bartel, 2012-06-17
Last update: Dieter Berlin, 2024-01-30 more...
77 - P1250538
Satoshi Hashimoto
P0296 StrateGems 2011
7. Preis
P1250538
(7+16) C+
BP in 25
1. c4 Sh6 2. c5 Sf5 3. c6 Sxc6 4. b4 Scd4 5. b5 c5 6. b6 Dxb6 7. h4 Kd8 8. h5 Kc7 9. h6 Dxh6 10. a4 b5 11. a5 b4 12. a6 Lxa6 13. e4 Lxf1 14. g4 a5 15. g5 Ta6 16. g6 Txg6 17. f4 Kb6 18. Sf3 Tg1 19. e5 g6 20. e6 Sxe6 21. d4 Lg7 22. d5 Ta8 23. d6 Sxd6 24. f5 Sf8 25. f6 Lxf6
play all play one stop play next play all
Henrik Juel: Natch 3.1 did nothing in half an hour
Stopped while searching for pos. 1 (2018-12-30)
Moldenhauer: Computerprüfung: C+ Stelvio 1.0 2 Sekunden!
Keine Lösung: BP 24.0, BP 24.5. (2023-02-14)
comment
Keywords: Unique Proof Game
Genre: Retro
Computer test: Stelvio 1.0
FEN: r4n2/3ppp1p/1k1n1bpq/p1p5/1p6/5N2/8/RNBQKbrR
Reprints: 62 64 Proof Games 2012
Input: Gerd Wilts, 2012-10-03
Last update: Silvio Baier, 2023-03-02 more...
78 - P1257184
Satoshi Hashimoto
v StrateGems 1998
P1257184
(14+15) C+
BP in 16,5
1. h4 a5 2. Th3 a4 3. Tb3 axb3 4. axb3 e5 5. Ta6 Lc5 6. Tf6 Ta1 7. Sc3 Txc1 8. g3 Ta1 9. Lh3 Ta8 10. Da1 d6 11. Kd1 Sd7 12. Kc1 Tb8 13. Da8 La7 14. Sa2 b6 15. Dh1 Ta8 16. Sf3 Sb8 17. Dd1
play all play one stop play next play all
Henrik Juel: Beautiful roundtrip by Dd1.
C? by Euclide, meaning that I stopped after a couple of hours without progress (2012-12-23)
Henrik Juel: Natch 3.1 was no better (2018-12-13)
Moldenhauer: Computerprüfung: C+ Euclide 1.11 in 41 Min. 35 Sek. nur 1 Lösung!
Keine Lösung bei BP in 15.5. Nach 10 Jahren doch gelöst mit Euclide. (2023-01-19)
more ...
comment
Keywords: Unique Proof Game, Pure Round Trip (D)
Genre: Retro
Computer test: Stelvio 1.17, 35sec
FEN: rnbqk1nr/b1p2ppp/1p1p1R2/4p3/7P/1P3NPB/NPPPPP2/2KQ4
Reprints: 5 64 Proof Games 2012
Input: Gerd Wilts, 2012-12-23
Last update: Reto, 2023-04-17 more...
79 - P1258428
Gabor Tar
S0548 StrateGems 61 01-03/2013
P1258428
(13+9) C+
s#3
1. e8=T Sxc5 2. Le7+ Txe7 3. Sf7+ Txf7#
1. ... Sxd8 2. Df8+ Te7 3. Se4+ Lxe4#
play all play one stop play next play all
SCHRECKE: C+, popeye 4.87 (2022-09-16)
comment

Genre: s#
FEN: b2N3Q/rn2P1Pp/pP1k1B1p/p1N2KpP/B1PP2P1/8/8/8
Input: Frank Müller, 2013-01-06
Last update: Marcin Banaszek, 2022-09-17 more...
80 - P1260456
Jorma Pitkänen
S0068 StrateGems 07-09/1999
P1260456
(7+6) C+
s#5 Zeroposition
a) +wBd6, +wLf6
b) wLd3 nach d5, +wBd6
c) +wSf6
d) wDc6 nach f6, +wTd6
e) +wTb6
a) 1. Ld8! f6 2. Lc4 bxc4 3. Lb6 Lb5 4. La5+ Ka4 5. Lc3 Lxc6#
3. ... c3 4. Lc5+ Kc4 5. La3+ Lxc6#
b) 1. Db6! f6 2. Lc4 Kxc4 3. Da5 b4 4. Da6+ Lb5 5. Dc6+ Lxc6#
c) 1. Sd7! f6 2. Sd8 Ka5 3. Dd6 b4 4. Dxb4+ Kxb4 5. Sc6+ Lxc6#
d) 1. Dd8! f6 2. Lb1 Kc4 3. Da5 b4 4. Tc6+ Lxc6+ 5. Dd5+ Lxd5#
e) 1. Dc7! f6 2. Sd8 Ka5 3. Da7+ Kb4 4. Txb5+ Lxb5 5. Sc6+ Lxc6#
play all play one stop play next play all
more ...
comment

Genre: s#
Computer test: A. Baumann: a)-e): C+ Gustav 4.2a
FEN: 8/1N3p2/2Q5/1p2pP2/bk2K3/1p1BP3/1P6/8
Input: Frank Müller, 2013-01-20
Last update: Dieter Berlin, 2024-02-07 more...
81 - P1273020
Leonid Makaronez
Aleksandr Sygurov

M0805 StrateGems 04-06/2009
1. Preis
P1273020
(13+8)
#3
1. Dc5!
play all play one stop play next play all
Teppo Mänttä: Reprint: B50 FIDE Album 2007-2009 (Bratislava 2015). (2022-10-10)
Henrik Juel: 1.Dc5 thr. 2.d6
duals after 1... Dd4 (2022-10-10)
comment

Genre: 3#
FEN: 4NKB1/3R4/2PQ2p1/p2P4/Rq2k1p1/n5PP/4P1nN/1bB5
Input: Felber, Volker, 2013-06-24
Last update: Felber, Volker, 2013-06-24 more...
82 - P1273030
Valery I. Rezinkin
M0809 StrateGems 04-06/2009
P1273030
(3+5)
#4
1. Lf2!
play all play one stop play next play all
Rosalie Fay: 1. Lf2 zz g1~ 2. Lxg1 ~ 3. Df2 ~ 4. Dh2#

1. ... h5 2. De4 zz Kh2 3. Dxf4+ K~ 4. Dxh4#; 2. ... h3 3. De1+ Kh2/g1~ 4. Dg1#
C+ Popeye Windows-64Bit v4.69 (2023-12-29)
comment

Genre: n#
FEN: 8/8/7p/8/3Q1p1p/3K4/6p1/6Bk
Input: Felber, Volker, 2013-06-24
Last update: Felber, Volker, 2013-06-24 more...
83 - P1273043
Arpad Molnar
H1381 StrateGems 04-06/2009
P1273043
(5+9)
h#2
2.1...
1) 1. Sd5 Lc2 2. Tf7 Sc5#
2) 1. Sf7 La4 2. Td5 Sg7#
play all play one stop play next play all
SCHRECKE: C+, popeye 4.87 (2023-08-08)
comment

Genre: h#
FEN: 1q1rN3/4p3/3nk2p/7p/3PNn2/5r2/7K/3B4
Input: Felber, Volker, 2013-06-24
Last update: Felber, Volker, 2013-06-24 more...
84 - P1273046
Arpad Molnar
H1384 StrateGems 04-06/2009
P1273046
(6+10)
h#2
a) Diagramm
b) sKd8
a) 1. Tc3 d4 2. Ld5 dxe5#
b) 1. Td5 Tc4 2. Lc3 Tc8#
play all play one stop play next play all
SCHRECKE: C+, popeye 4.87 (2023-08-08)
comment

Genre: h#
FEN: b4B2/5p2/p4k2/r3pBp1/p3R1P1/8/1brP2K1/8
Input: Felber, Volker, 2013-06-24
Last update: Felber, Volker, 2013-06-24 more...
85 - P1278438
George P. Sphicas
(3) StrateGems (64) 10-12/2013
P1278438
(6+15) cooked
ser-s#65
1. Kg3 2. Kh2 3. Kg1 4. Kf1 5. Ke1 6. Kd1 7. Kc2 8. Kxc3 9. Kd3 10. Kxe3 11. Kd2 12. Ke1 13. Kf1 14. Kg1 15. Kh2 16. Kg3 17. Kh4 18. Kxg5 19. Kh6 20. Kg7 21. Kxf8 22. Kg7 23. Kh6 24. Kg5 25. Kh4 26. Kg3 27. Kh2 28. Kg1 29. Kf1 30. Ke1 31. Kd2 32. Kc3 33. Kb4 34. Kxb5 35. Kc4 36. Kd5 37. Kxe5 38. Kd4 39. e5 40. e6 41. exf7 42. f8=S 43. Sd7 44. Sb6 45. Sxa8 46. Sc7 47. a8=T 48. Txa6 49. Tb6 50. a6 51. a7 52. a8=D 53. Dxf3 54. Dxg4 55. f4 56. f5 57. fxg6 58. g7 59. g8=L 60. Ld5 61. Lb7 62. Kd5 63. Kc6 64. Sd5 65. Dd7+ Lxd7#
play all play one stop play next play all
Cook: 1. Kg3 2. Kh2 3. Kg1 4. Kf1 5. Ke1 6. Kd1 7. Kc2 8. Kxc3 9. Kd3 10. Kxe3 11. Kd2 12. Ke1 13. Kf1 14. Kg1 15. Kh2 16. Kg3 17. Kh4 18. Kxg5 19. Kh4 20. Kg3 21. Kh2 22. Kg1 23. Kf1 24. Ke1 25. Kd2 26. Kc3 27. Kb4 28. Kxb5 29. Kc4 30. Kd5 31. Kxe5 32. Kf4 33. e5 34. e6 35. Kxg4 36. Kxf3 37. Ke4 38. f4 39. Kd5 40. f5 41. fxg6 42. exf7 43. g7 44. gxf8=S 45. Sd7 46. Sb6 47. Sxa8 48. Sc7 49. a8=T 50. Se8 51. f8=D 52. Txa6 53. Kc6 54. Tb6 55. a6 56. a7 57. a8=L 58. Df5 59. Sc7 60. Sd5 61. Lb7 62. Dd7+ Lxd7#
paul: Cooked by (tested the last 48 moves, see Quartz 55/2022): 1.Kh2 2.Kg3 3.Kh4 4.Kxg5 5.Kh4 6.Kg3 7.Kh2 8.Kg1 9.Kf1 10.Ke1 11.Kd2 12.Kc3 13.Kb4 14.Kxb5 15.Kc4 16.Kd5 17.Kxe5 18.Kf4 19.e5 20.e6 21.Kxg4 22.Kxf3 23.Ke4 24.f4
25.Kd5 26.f5 27.fxg6 28.exf7 29.g7 30.gxf8=S 31.Sd7 32.Sb6 33.Sxa8 34.Sc7 35.a8=R 36.Se8 37.f8=Q 38.Rxa6
39.Kc6 40.Rb6 41.a6 42.a7 43.a8=B 44.Qf5 45.Sc7 46.Sd5 47.Bb7 48.Qd7+ (Bxd7#)
A to B method used. (2024-02-27)
comment
Keywords: konsekutive Umwandlungen 4, Allumwandlung, Seriesmover
Genre: Fairies
FEN: n1bk1n2/P3pp2/r5p1/PpP1p1r1/4P1pK/2p1bp2/5P2/8
Input: Frank Müller, 2013-09-30
Last update: Olaf Jenkner, 2024-02-28 more...
86 - P1288890
Gianni Donati
P0333 StrateGems 2012
3. Preis
P1288890
(13+14) C+
BP in 22.0
1. f3 h5 2. Kf2 Th6 3. Kg3 h4+ 4. Kg4 h3 5. Sxh3 Te6 6. Sf2 d5 7. h4 d4 8. h5 d3 9. h6 dxc2 10. Th5 Dd3 11. Tb5 Dc3 12. dxc3 a6 13. Lg5 axb5 14. Lf6 exf6 15. e3 Ld6 16. Lc4 Kd7 17. Dd3 Te8 18. Sd2 Se7 19. Th1 Th8 20. Th5 Sg8 21. Tc5 Ke8+ 22. Df5 Lf8
play all play one stop play next play all
PR R.MacCracken: A well-concealed bR Rundlauf for screening with K/B/S switchbacks to let it come back home. The final position is appealing to a solver - Black looks like he has hardly moved, and yet it is not an obvious promotion-themed problem.
Henrik Juel: Natch 3.1 did little in half an hour
Stopped at pos. 1 (2018-12-30)
more ...
comment
Keywords: Unique Proof Game, Pure Round Trip (t), Switchback (kls)
Genre: Retro
Computer test: Computerprüfung: C+ Stelvio 1.0 00:04:01 Minuten. (hh:mm:ss) Keine Lösung: BP 21.0, BP 21.5.
FEN: rnb1kbnr/1pp2pp1/5p1P/1pR2Q2/2B3K1/2P1PP2/PPpN1NP1/8
Input: Mario Richter, 2014-10-08
Last update: A.Buchanan, 2023-03-10 more...
87 - P1288893
Dan Meinking
P0344 StrateGems 2012
2. ehrende Erwähnung
P1288893
(12+15) C+
BP in 20.0
1. Sf3 d5 2. Se5 Lg4 3. Sd7 Lf3 4. gxf3 c5 5. Lh3 Da5 6. Lf5 Da3 7. Ld3 a5 8. Lb5 a4 9. Lc6 Sxc6 10. 0-0 0-0-0 11. Sf6 Td6 12. Kh1 Txf6 13. Tg1 e6 14. Tg6 Le7 15. Th6 Sxh6 16. Dg1 Td8 17. Dg3 Td7 18. Dd6 Ld8 19. Df8 Se7 20. Dg8 Sexg8
play all play one stop play next play all
PR R.MacCracken: A Meinking favorite theme: White has to sacrifice his missing pieces by thrusting them into the gears of Black's machine at just the right moment, when a black piece happens to be going to the right square. While solving, I enjoyed picking out the routes of the wB and wQ in particular. What a great way to remember our friend, Dan.
Henrik Juel: Natch 3.1 did not find the solution in an hour
Stopped at pos. 5522 (2018-12-30)
Henrik Juel: correction:
C+ by Natch 3.1 (1:06 h)
No solution in 19.5 (2018-12-30)
Reto: Stelvio 1.22, 7:30min (2023-05-18)
comment
Keywords: Unique Proof Game
Genre: Retro
Computer test: Stelvio 1.22, 7:30min
FEN: 2kb2n1/1p1r1ppp/4pr1n/2pp4/p7/q4P2/PPPPPP1P/RNB4K
Input: Mario Richter, 2014-10-08
Last update: Reto, 2023-05-18 more...
88 - P1293476
Tibor Ersek
C0539 StrateGems (69) 01-03/2015
P1293476
(6+13)
ser-s=11
1. Sb4 2. Sd5 3. Sxb6 4. Sxc4 5. Se5 6. Lb5 7. Txc3 8. Txc6 9. Kd5 10. e4 11. Tf1+ Dxf1=
play all play one stop play next play all
Anton Baumann: unlösbar! Diagramm / Forderung korrekt? (2020-03-06)
paul: Typo: Pawns e6-f6 must be at e7-f7. Sol: 1-5.Sb4-d5-xb6-xc4-e5 6.Bb5 7.Rxc3 8.Rxc6 9.Kd5 10.e4 11.Rf1+ Qxf1=. (2022-08-20)
Anton Baumann: mit sBe7,f7: C+ Gustav 4.2a (2022-11-07)
comment
Keywords: Seriesmover
Genre: Fairies
FEN: b7/b3pp2/1pp5/r6r/2p1K3/2pB3R/N2pPR2/3k2q1
Input: Frank Müller, 2014-12-29
Last update: Mario Richter, 2022-08-20 more...
89 - P1333451
Viktor S. Zheglov
Yuri Paramonov

StrateGems (78) 04-06/2017
Petko A. Petkov 75 JT
3. ehrende Erwähnung
P1333451
(4+2)
s#26
1. Se5+ Ke4 2. Te3+ Kf4 3. Te2+
1. ... Kc5 2. Da5+ Kd4! 3. Da4+ Kc5,Kd5 4. Tb5+
play all play one stop play next play all
SCHRECKE: 1. Se5+! Ke4 2. Te3+ Kf4 3. Te2+ Kg3 4. De1+ Kh3,Kf4 5.Dh1+,Df1+ Kg3 6. Df3+ Kh4 7. Te4+ Tg4 8. Sg6+ Kh5 9. Kg7 Kg5 10. Df6+ Kh5 11. Df5+ Tg5 12. Df3+ Tg4 13. Te3 Kg5 14. Df6+ Kh5 15. De5+ Tg5 16. Dh2+ Kg4 17. Dh4+ Kf5 18. Dh3+ Tg4 19. Kh6 Kf6 20. Df3+ Tf4 21. Dc6+ Kf7! 22. De8+ Kf6 23. De7+ Kf5 24. Dd7+ Kf6 25. Dg7+ Kf5 26. Sh4+ Txh4#
1. ... Kc5 2. Da5+ Kd4 3. Da4+ Kc5,Kd5 4. Tb5+ Kd6 5. Da6+ Kc7 6. Dc6+ Kd8 7. Td5+ Td7 8. Sf7+ Ke8 9. Kg7 Ke7 10. Df6+ Ke8 11. De6+ Te7 12. Dc6+ Td7 13. Tc5 Ke7 14. Df6+ Ke8 15. De5+ Te7 16. Db8+ Kd7 17. Dd8+ Ke6 18. Dc8+ Td7 19. Kf8 Kf6 20. Dc6+ Td6 21. Df3+ Kg6! 22. Dh5+ Kf6 23. Dg5+ Ke6 24. Dg4+ Kf6 25. Dg7+ Ke6 26. Sd8+ Txd8#
2. ... Kd6 3. Tb6+ Kc7 4. Tb5+ Kd6,Kc8 5. Da6+,Da8+ Kc7 6. Dc6+ ... (2023-10-10)
comment
Keywords: Aristocrat, Langzügige Miniatur
Genre: s#
FEN: 8/6r1/5K2/3k4/8/1R1N4/3Q4/8
Input: Frank Müller, 2017-04-22
Last update: Frank Müller, 2017-04-23 more...
90 - P1335232
Tibor Ersek
Radovan Tomasevic

C0628 StrateGems (79) 07-09/2017
P1335232
(5+8) cooked
ser-s=26
1. c8=T 2. Tc2 3. Txf2 4. Kg4 5. g6 6. g7 7. g8=D 8. Dg5 9. Df4 10. Kf3 11. g4 12. g5 13. g6 14. g7 15. g8=L 16. Lxd5 17. Ke3 18. Kd4 19. Kc5 20. e6 21. e7 22. e8=S 23. Sd6 24. Se4 25. Sc3 26. Dc1+ Txc1=
play all play one stop play next play all
Cook: (NL gefunden von Hovsep Diratsouian:)
1. c8=D 2. Dc2 3. Dxf2 4. g4 5. gxf5 6. g6 7. g7 8. g8=L 9. Lxd5 10. e6 11. e7 12. e8=T 13. Te5 14. Kg4 15. Kf3 16. Ke3 17. Kxd3 18. De1 19. Dd1 20. Kc2 21. Kb1 22. Ka1 23. Le4,La2 24. Lb1 25. Db3+ Kxb3=
paul: 1.c8R 3.Rxf2 4.Kg4 7.g8Q 9.Qf4 10.Kf3 15.g8B 16.Bxd5 19.Kc5 22.e8S 23.Sd6 25.Sc3 26.Qc1+ Rxc1=. Hovsep Diratsouian found a cook: 1.c8Q 2.Qc2 3.Qxf2 4.g4 5. gxf5 8.g8B 9.Bxd5 12.e8R 13.Re5 17.Kxd3 19.Qd1 22.Ka1 24.Bb1 25.Qb3+ Kxb3= (2022-08-20)
comment
Keywords: Seriesmover, Allumwandlung
Genre: Fairies
FEN: 8/2P5/5q2/3nPrPK/8/k2b4/5nP1/5rb1
Input: Frank Müller, 2017-06-24
Last update: Mario Richter, 2022-08-20 more...
91 - P1349332
Yoav Ben-Zvi
P0360 StrateGems SG63 07/2013
after Kay Soltsien & Hans Heinrich Schmitz,
Die Schwalbe 1960
P1349332
(16+16) C+
PG in 26.0
1. c4 c5 2. Db3 Db6 3. Dh3 Dh6 4. b3 b6 5. La3 La6 6. Lb4 Lb5 7. Sa3 Sa6 8. 0-0-0 0-0-0 9. Kb2 Kb8 10. Tc1 Tc8 11. Tc3 Tc6 12. Tg3 Tg6 13. Tg4 e6 14. g3 Le7 15. Lg2 Lg5 16. Le4 Se7 17. Sf3 Tc8 18. Tc1 Tc6 19. Tc3 Td6 20. Te3 Td3 21. Dg2 Tc3 22. h3 Tc1 23. Tc3 Ta1 24. Lb1 Kc8 25. Sc2 Sb8 26. Ka3 a6
play all play one stop play next play all
Zur Aufgabe von K. Soltsien & H. H. Schmitz siehe P1013024
Henrik Juel: Nice capture-free proof game with several back-tracking moves and partially symmetrical play
Yoav Ben-Zvi: The primary thematic content lies in Turton doubling: 20.Rc3-e3 (WR crosses d3 for [BRh8]) with Switchback 22.Rc3-e3 and Bristol clearance: 8...0-0-0, 9...Kc8-b8 (BK crosses c8 for [BRh8]) with Switchback 24...Kb8-c8.
The main motivation for composing this problem is as a challenge for solving software in a capture-free game (essentially a piece-shuffle). (2018-04-24)
Henrik Juel: It was a challenge for my patience, at least
Natch 3.1 did not find the solution in an hour
Stopped at pos. 1 (2018-12-31)
ras@bsiag.com: Challenge accepted! Stelvio 0.94 can solve this in about 3h. It is C+. Admittedly, I threw a lot of hardware at it (but without parallelizing). I'm sure the solving time will be reduced considerably in the future. (2022-12-12)
more ...
comment
Keywords: Turton, Bristol, Switchback (Tks), Unique Proof Game, Capture-free
Genre: Retro
Computer test: Stelvio 1.0
FEN: 1nk5/3pnppp/pp2p1rq/1bp3b1/1BP3R1/KPR2NPP/P1NPPPQ1/rB6
Input: Yoav Ben-Zvi, 2018-04-21
Last update: Silvio Baier, 2023-03-02 more...
92 - P1357876
Kostas Prentos
Andrey Frolkin

P0462v StrateGems 84 10-12/2018
P1357876
(13+11)
KBP 18.5
Provokateure
'Quartz' (P. Raican): "The proof game is a correction of one published in Problemaz, December 2008, which was the last issue of this interesting chess magazine, edited by Abdelaziz Onkoud. The authors recently demolished the original problem with Jacobi. Lecturers are invited to solve this PG, even with the help of Labelle's program. After 10 years, the cook-hunters are now able to verify, even partially, the problems collected in this article, using the remarkable program Jacobi."
(mri: A small remark: 10 years ago it was already possible to "verify, even partially" at least some of the "Provocateur" PGs using 'rawbats').
Kostas Prentos: Solution:
1. h4 a5 2. h5 a4 3. h6 a3 4. hxg7 axb2 5. Th6 Ta3 6. Te6 Td3 7. a4 h5 8. a5 h4 9. Ta4 h3 10. Sa3 b1=D 11. Lb2 h2 12. Le5 hxg1=D 13. Lh2 Thh3 14. gxh3 f6 15. Lxg1 Kf7 16. Lg2 Kg6 17. Lc6 bxc6 18. cxd3 Lb7 19. Dxb1
C+ Jacobi v0.4.8 (711046 sec) (2022-12-08)
comment
Keywords: Unique Proof Game, Provocateurs
Genre: Retro, Fairies
FEN: 1n1q1bn1/1bppp1P1/2p1Rpk1/P7/R7/N2P3P/3PPP2/1Q2K1B1
Reprints: P11 Quartz 46, p. 792, 10/2018
Input: Mario Richter, 2018-11-20
Last update: Marcin Banaszek, 2019-08-07 more...
93 - P1384473
Unto Heinonen
StrateGems 2019
3. Preis
P1384473
(10+14) cooked
BP 23
paul: 1.d4 h6 2.Bg5 h×g5 3.Sf3 Rh3 4.Sh4 g×h4 5.d5 g5 6.d6 Bg7 7.d×ç7 d5 8.é4 Bf5 9.ç8=S Bg6 10.Sb6 a×b6 11.Bç4 Raa3 12.Bb3 Sa6 13.ç4 d×ç4 14.0-0 Qd2 15.é5 Kd7 16.é6+ Kd6 17.é×f7 é5 18.f8=Q+ Sé7 19.Qé8 Sç8 20.Qa4 b5 21.Ré1 b×a4 22.Ré3 b5 23.Rd3+ ç×d3
Cook : 9.é5 a6 10.Bb5+ a×b5 11.ç4 d×ç4 12.0-0 Qd2 13.Ré1 Kd7 14.é6+ Kd6 15.Ré3 Bg6 16.é×f7 Ra3 17.Rd3+ ç×d3 18.f8=Q Sa6 19.Qf4+ é5 20.Qfa4 b×a4 21.ç8=B Sé7 22.Bé6 b5 23.Bb3 Sç8 (2022-05-31)
Moldenhauer: Computerprüfung: Cooked Stelvio 1.6 in 16:26:20 Stunden. (hh:mm:ss)
Keine Lösung: BP 22.5.

Obige Lösung von paul ist Stevios einzige Lösung ohne cook.
Stelvio findet noch 4 cooks. Beispiel.

1.Sf3 a6 2.d4 d5 3.Lg5 Lf5 4.e4 h6 5.Lb5+ axb5 6.0–0 Ta3 7.Te1 Sa6 8.c4 dxc4 9.d5 hxg5 10.d6 Th3 11.Sh4 gxh4 12.dxc7 Dd2 13.e5 Kd7 14.Te4 g5 15.e6+ Kd6 16.c8=L Lg6 17.exf7 e5 18.Le6 Lg7 19.f8=D+ Se7 20.Dff3 Sc8 21.Dd3+ cxd3 22.Ta4 bxa4 23.Lb3 b5 (2023-12-15)
comment

Genre: Retro
FEN: 2n5/6b1/n2k2b1/1p2p1p1/p6p/rB1p3r/PP1q1PPP/RN1Q2K1
Input: fs/hg, 2020-12-30
Last update: A.Buchanan, 2022-06-01 more...
94 - P1384627
Kostas Prentos
StrateGems 2017
3. Preis
P1384627
(14+15) C+
KBP 22.5
1. b3 Sf6 2. Lb2 Sh5 3. Lf6 gxf6 4. Dc1 Lh6 5. Da3 Lf4 6. Da6 bxa6 7. g4 Lb7 8. g5 Lf3 9. g6 c6 10. g7 Da5 11. gxh8=L Df5 12. Lg7 a5 13. Lh6 Sa6 14. Lg5 0-0-0 15. Lh4 Tg8 16. Lg3 Tg5 17. h4 Sg7 18. Th2 Lh5 19. f3 Kc7 20. Lf2 Kd6 21. Ld4 Sc7 22. Lb2 a6 23. Lc1
play all play one stop play next play all
Vladimir Rey: 1. b3 Sf6 2. Lb2 Sh5 3. Lf6 gxf6 4. Dc1 Lh6 5. Da3 Lf4 6. Da6 bxa6 7. g4 Lb7 8. g5 Lf3 9. g6 c6 10. g7 Da5 11. gxh8=L Df5 12. Lg7 a5 13. Lh6 Sa6 14. Lg5 0-0-0 15. Lh4 Tg8 16. Lg3 Tg5 17. h4 Sg7 18. Th2 Lh5 19. f3 Kc7 20. Lf2 Kd6 21. Ld4 Sc7 22. Lb2 a6 23. Lc1 (2022-07-30)
Henrik Juel: Pronkin theme: [Lc1] is captured on f6, and Lc1 is [Pg2] promoted on h8
The march from h8 to c1 is arduous: g7xTh8=L-g7-h6-g5-h4-g3-f2-d4-b2-c1, with nine moves by promoted L (2022-07-30)
more ...
comment
Keywords: Unique Proof Game, Pronkin Theme (L)
Genre: Retro
Computer test: Computerprüfung: C+ Stevio 1.0 00:01:30 Minute. (hh:mm:ss) Keine Lösung: BP 21.5, BP 22.0.
FEN: 8/2npppnp/p1pk1p2/p4qrb/5b1P/1P3P2/P1PPP2R/RNB1KBN1
Input: fs/hg, 2020-12-30
Last update: A.Buchanan, 2023-03-10 more...
95 - P1384752
Gianni Donati
StrateGems 2002
5.-7. Preis ex aequo
P1384752
(15+16) C+
BP in 16.0
1. a4 g5 2. a5 g4 3. Ta4 g3 4. Tg4 Lg7 5. f4 Ld4 6. Sf3 Lg1 7. d4 Lxh2 8. Dd3 Lg1 9. Th6 Kf8 10. Tc6 e6 11. Dg6 Ke7 12. f5 Ke8 13. Lh6 Le3 14. Sg5 Lf4 15. e3 Ld6 16. Le2 Lf8
play all play one stop play next play all

Duplicate Diagram: P1004134

Moldenhauer: Computerprüfung: Diagrammstellung hat keine Lösung!
Mit weißem Bauern auf g2 C+ Stelvio 1.6 in 1 Sek.
Keine Lösung: BP 15.5.
FEN: rnbqkbnr/pppp1p1p/2R1p1QB/P4PN1/3P2R1/4P1p1/1PP1B1P1/1N2K3
Lösung dazu: 1.a4 g5 2.a5 g4 3.Ta4 g3 4.Tg4 Lg7 5.f4 Ld4 6.Sf3 Lg1
7.d4 Lxh2 8.Dd3 Lg1 9.Th6 Kf8 10.Tc6 e6 11.Dg6 Ke7 12.f5 Ke8
13.Lh6 Le3 14.Sg5 Lf4 15.e3 Ld6 16.Le2 Lf8
Siehe StrateGems SG19 P0105. Bitte Diagramm ändern usw. Danke! (2023-11-06)
James Malcom: I checked, and indeed there is. And whaddya know, duplicate entry. (2023-11-07)
comment

Genre: Retro
Computer test: Stelvio 1.6
FEN: rnbqkbnr/pppp1p1p/2R1p1QB/P4PN1/3P2R1/4P1p1/1PP1B1P1/1N2K3
Input: fs/hg, 2020-12-30
Last update: Silvio Baier, 2023-11-14 more...
96 - P1384753
Gianni Donati
StrateGems 2006
3. Preis
P1384753
(16+15) C+
BP in 18
1. e4 Sc6 2. Dh5 Se5 3. Ke2 Sg6 4. Kf3 f6 5. Kg4 Kf7 6. Sf3 Ke6 7. Lc4+ Kd6 8. Te1 De8 9. Te3 Df7 10. Tc3 Dd5 11. d3 Ke6 12. Lf4 Kf7 13. Ld6 Ke8 14. De5 Sf4 15. Lxd5 Se6 16. Tc6 Sc5 17. Sc3 Sa6 18. Th1 Sb8
play all play one stop play next play all
more ...
comment

Genre: Retro
Computer test: Computerprüfung: C+ Stelvio 1.6 in 9 Sek. Keine Lösung: BP 17.5. Notation u. Diagramm OK.
FEN: rnb1kbnr/ppppp1pp/2RB1p2/3BQ3/4P1K1/2NP1N2/PPP2PPP/7R
Input: fs/hg, 2020-12-30
Last update: A.Buchanan, 2023-12-25 more...
97 - P1384759
Andrey Frolkin
Nicolas Dupont

StrateGems 2014
1. Preis
P1384759
(13+13) C+
BP in 28.5
1. d4 c5 2. d5 c4 3. d6 c3 4. dxe7 cxb2 5. c4 d5 6. c5 d4 7. c6 d3 8. c7 Kd7 9. e8=T Lc5 10. Te6 Se7 11. Ta6 bxa6 12. a4 Lb7 13. c8=L+ Kc6 14. Lf5 Sd7 15. Lg6 hxg6 16. a5 Th6 17. Ta4 Dh8 18. Sa3 b1=S 19. Sf3 Sd2 20. Sh4 Sf3+ 21. gxf3 Tg8 22. Lh3 Sb8 23. 0-0 d2 24. Db3 d1=D 25. Lc8 Dd6 26. Td1 Dg3+ 27. hxg3 Dh7 28. Td8 Ld4 29. Te8
play all play one stop play next play all
Moldenhauer: Computerprüfung: C+ Stelvio 1.11 00:09:26 Minuten. (hh:mm:ss)
Keine Lösung: BP 27.5, BP 28.0.
Notation:1.d4 c5 2.d5 c4 3.d6 c3 4.dxe7 cxb2 5. c4 d5 6.c5 d4 7.c6 d3 8.c7 Kd7
9.e8T Lc5 10.Te6 Se7 11.Ta6 bxa6 12.a4 Lb7 13.c8L+ Kc6 14.Lf5 Sd7 15.Lg6 hxg6
16.a5 Th6 17.Ta4 Dh8 18.Sa3 b1S 19.Sf3 Sd2 20.Sh4 Sf3+ 21.gxf3 Tg8 22.Lh3 Sb8
23.0–0 d2 24.Db3 d1D 25.Lc8 Dd6 26.Td1 Dg3+ 27.hxg3 Dh7 28.Td8 Ld4 29.Te8 (2023-04-08)
comment

Genre: Retro
Computer test: Stelvio 1.11
FEN: 1nB1R1r1/pb2nppq/p1k3pr/P7/R2b3N/NQ3PP1/4PP2/2B3K1
Input: fs/hg, 2020-12-30
Last update: Silvio Baier, 2023-11-14 more...
98 - P1384763
Silvio Baier
StrateGems 2015
2. Preis
P1384763
(14+12) C+
BP in 28
1. f4 g5 2. f5 g4 3. f6 g3 4. fxe7 f5 5. e4 Kf7 6. e8=T f4 7. Te6 f3 8. Tc6 dxc6 9. Lc4+ Kg6 10. d3 f2+ 11. Kd2 f1=D 12. e5 Df5 13. Df3 Dh3 14. gxh3 g2 15. Se2 g1=D 16. e6 Db6 17. e7 Db3 18. axb3 b6 19. Ta5 Lb7 20. Tb5 a5 21. e8=T a4 22. Tee5 a3 23. Le6 a2 24. c4 a1=D 25. Kc2 Da5 26. Sd2 Dc3+ 27. bxc3 Lb4 28. Tec5 bxc5
play all play one stop play next play all
more ...
comment
Keywords: Ceriani-Frolkin Theme (TTddd), Future Proof Game
Genre: Retro
Computer test: Natch 3.3 Computerprüfung: C+ Stelvio 1.6 in 4 Min. Keine Lösung: BP 27.5. Notation und Diagramm OK.
FEN: rn1q2nr/1bp4p/2p1B1k1/1Rp5/1bP5/1PPP1Q1P/2KNN2P/2B4R
Input: fs/hg, 2020-12-30
Last update: A.Buchanan, 2023-12-25 more...
99 - P1384764
Andrey Frolkin
StrateGems 2015
3. Preis
P1384764
(12+14) C+
BP in 24.5
1. f4 g6 2. f5 Lh6 3. f6 Lg7 4. fxg7 f5 5. e4 Sf6 6. g8=L f4 7. Ld5 e6 8. e5 exd5 9. e6 0-0 10. e7 f3 11. e8=T f2+ 12. Ke2 De7+ 13. Kf3 De5 14. Te6 Te8 15. Tb6 axb6 16. Ld3 Ta4 17. Lf5 Tg4 18. a4 f1=S 19. a5 Sg3 20. a6 Se2 21. a7 Sxc1 22. a8=D Se2 23. Da4 Sg3 24. Dc6 bxc6 25. hxg3
play all play one stop play next play all
Moldenhauer: Computerprüfung: C+ Stelvio 1.11 3 Sekunden.
Keine Lösung: BP 23.5, BP 24.0, BP 25.0 cooked.
Schlüsselwort: UPG
Notation:
1.f4 g6 2.f5 Lh6 3.f6 Lg7 4.fxg7 f5 5.e4 Sf6 6.g8L f4 7.Ld5 e6 8.e5 exd5
9.e6 0–0 10.e7 f3 11.e8T f2+ 12.Ke2 De7+ 13.Kf3 De5 14.Te6 Te8 15.Tb6 axb6
16.Ld3 Ta4 17.Lf5 Tg4 18.a4 f1S 19.a5 Sg3 20.a6 Se2 21.a7 Sxc1 22.a8D Se2
23.Da4 Sg3 24.Dc6 bxc6 25.hxg3 (2023-04-06)
comment

Genre: Retro
Computer test: Stelvio 1.11
FEN: 1nb1r1k1/2pp3p/1pp2np1/3pqB2/6r1/5KP1/1PPP2P1/RN1Q2NR
Input: fs/hg, 2020-12-30
Last update: Silvio Baier, 2023-11-14 more...
100 - P1384765
Silvio Baier
StrateGems 2015
4. Preis
P1384765
(12+16) C+
BP in 27.5
1. d4 d5 2. Lh6 gxh6 3. g4 h5 4. g5 Lh6 5. g6 Lg5 6. g7 Sh6 7. g8=S Kd7 8. Sf6+ exf6 9. b4 Te8 10. b5 Te3 11. b6 Tf3 12. e4 c5 13. Lc4 dxc4 14. e5 c3 15. e6+ Kd6 16. e7 Le6 17. e8=L Lb3 18. Lb5 Sc6 19. Lf1 c4 20. d5 Kc5 21. d6 Se7 22. d7 De8 23. d8=S a5 24. Sc6 bxc6 25. b7 Td8 26. b8=L a4 27. Lf4 Td6 28. Lc1
play all play one stop play next play all
Vladimir Rey: FEN Misprint! Correct: a7 = a4 (2022-10-26)
James Malcom: Fixed. (2022-10-26)
comment
Keywords: Homebase (w), Ceriani-Frolkin Theme (SS), Pronkin Theme (LL), Future Proof Game, Promotion (SLSL)
Genre: Retro
Computer test: Natch 3.3
FEN: 4q3/4np1p/2pr1p1n/2k3bp/p1p5/1bp2r2/P1P2P1P/RNBQKBNR
Input: fs/hg, 2020-12-30
Last update: Silvio Baier, 2023-02-02 more...
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