16 problem(s) found in 3986 milliseconds (displaying 16 problem(s)). [COMMENTDATE>=20220810 AND K='Schachschlüssel' AND K='Damenopfer'] [download as LaTeX]
1. Sxd6+! Kf6 2. Df5+ exf5 3. Sf7#
1. ... Kg5 2. Dg3+ Kf6,Kh6 3. Dg7#
1. ... Kg5 2. Dg3+ Kf6,Kh6 3. Dg7#
Keywords: Brian Stephenson Collection (7711), Capture key, Checking key, Discovered check (Schlüssel), discovered checkmate, Queen sacrifice
Genre: 3#
Computer test: SCHRECKE: popeye 4.89
FEN: 5K2/8/R2pp1k1/5N1p/8/3Q4/3b4/8
Reprints: 200 Intriguing Chess Puzzles 1996
Input: Brian Stephenson, 2004-08-12
Last update: Dieter Berlin, 2023-12-24 more...
Genre: 3#
Computer test: SCHRECKE: popeye 4.89
FEN: 5K2/8/R2pp1k1/5N1p/8/3Q4/3b4/8
Reprints: 200 Intriguing Chess Puzzles 1996
Input: Brian Stephenson, 2004-08-12
Last update: Dieter Berlin, 2023-12-24 more...
1. Tc2? Te4! 1. Lc2? Sg4!
1. Df1+! Txf1 2. Tc2 Dxc2 3. Ta4+ 2. ... Lxc2 3. Ld3+
1. ... Sxf1 2. Lc2 Dxc2 3. Ta4+ 2. ... Lxc2 3. Tg6+
1. Df1+! Txf1 2. Tc2 Dxc2 3. Ta4+ 2. ... Lxc2 3. Ld3+
1. ... Sxf1 2. Lc2 Dxc2 3. Ta4+ 2. ... Lxc2 3. Tg6+
Keywords: Brian Stephenson Collection (43844), Plachutta (schwarz+weiss), vornehmer Nowotny (weiss), Deflection, Checking key, Queen sacrifice, Rook sacrifice, Sacrifice key, Bishop sacrifice
Genre: n#
FEN: K7/NN5B/k7/2PPP2P/7R/2b2p1n/pp4Rn/1q1br2Q
Reprints: 279 Problem-Palette , p. 97, 1970
Input: Brian Stephenson, 2004-08-12
Last update: Dieter Berlin, 2022-08-17 more...
Genre: n#
FEN: K7/NN5B/k7/2PPP2P/7R/2b2p1n/pp4Rn/1q1br2Q
Reprints: 279 Problem-Palette , p. 97, 1970
Input: Brian Stephenson, 2004-08-12
Last update: Dieter Berlin, 2022-08-17 more...
1. Da3+! Kxa3 2. Lc3 b4 3. Lb2#
1. ... Kc4 2. Dd3+ Kxc5 3. Dd4# 2. ... Kb4 3. Dc3#
1. ... Kc4 2. Dd3+ Kxc5 3. Dd4# 2. ... Kb4 3. Dc3#
Keywords: Miniature Collection (0334626), Minimal, Miniature, Flight giving sacrifice key, Queen sacrifice, Blocknutzung, Knight sacrifice, Drag-in sacrifice, Checking key
Genre: 3#
Computer test: SCHRECKE: popeye 4.87
FEN: 8/Q7/8/1pNPB3/1k6/8/8/K7
Input: Zuncke/Bruder, 2010-09-11
Last update: Dieter Berlin, 2022-10-29 more...
Genre: 3#
Computer test: SCHRECKE: popeye 4.87
FEN: 8/Q7/8/1pNPB3/1k6/8/8/K7
Input: Zuncke/Bruder, 2010-09-11
Last update: Dieter Berlin, 2022-10-29 more...
1. Dc8+! Kxc8 2. Kc6 f5 3. b7#
1. ... Ke7 2. Ld8+ Kf8 3. Lf6#
1. ... Ke7 2. Ld8+ Kf8 3. Lf6#
Keywords: Miniature Collection (0047287), Minimal (b), Miniature, Flight giving sacrifice key, Checking key, Drag-in sacrifice, Pawn mate, Queen sacrifice
Genre: 3#
FEN: 8/2Bk1p2/QP6/2K5/8/8/8/8
Reprints: 537b Problemschach-Jahrbuch 1994 D , p. 255, 1995
Input: Felber, Volker, 2010-09-11
Last update: Dieter Berlin, 2023-07-23 more...
Genre: 3#
FEN: 8/2Bk1p2/QP6/2K5/8/8/8/8
Reprints: 537b Problemschach-Jahrbuch 1994 D , p. 255, 1995
Input: Felber, Volker, 2010-09-11
Last update: Dieter Berlin, 2023-07-23 more...
1. Da6+! Kxa6 2. Kc6 Lh4 3. b5#
1. ... Kxb4 2. Dd3 Lh4 3. Db3#
1. ... Kxb4 2. Dd3 Lh4 3. Db3#
Keywords: Miniature Collection (0050703), Minimal (b), Miniature, Flight giving sacrifice key, Pawn mate, Checking key, Drag-in sacrifice, Queen sacrifice
Genre: 3#
Computer test: SCHRECKE: popeye 4.87
FEN: 8/Q2K4/1B6/1k4b1/1P6/8/P7/8
Reprints: 537 Problemschach-Jahrbuch 1994 D , p. 254, 1995
Input: Felber, Volker, 2010-09-11
Last update: Dieter Berlin, 2023-07-23 more...
Genre: 3#
Computer test: SCHRECKE: popeye 4.87
FEN: 8/Q2K4/1B6/1k4b1/1P6/8/P7/8
Reprints: 537 Problemschach-Jahrbuch 1994 D , p. 254, 1995
Input: Felber, Volker, 2010-09-11
Last update: Dieter Berlin, 2023-07-23 more...
1. Da8+ Kxa8 2. Kc7+ Dxg8 3. b7#
Keywords: Miniature Collection (0051375), Flight giving sacrifice key, Checking key, Queen sacrifice, Rook sacrifice, Pawn mate, Opferminimal, Miniature, Drag-in sacrifice
Genre: 3#
Computer test: Juel: Popeye 4.61
FEN: 1k1K2R1/n7/1P6/8/8/8/q5Q1/8
Input: Felber, Volker, 2010-09-11
Last update: Dieter Berlin, 2022-11-10 more...
Genre: 3#
Computer test: Juel: Popeye 4.61
FEN: 1k1K2R1/n7/1P6/8/8/8/q5Q1/8
Input: Felber, Volker, 2010-09-11
Last update: Dieter Berlin, 2022-11-10 more...
1. Dh1+! Kxh1 2. a8=D+ Tg2+ 3. Ke3 Kg1 4. Da1# 2. ... Kg1 3. Da1+ Kg2 4. Df1#
1. Dh5+! Kxh5 2. Kf5 Sf7 3. g4#
1. ... Kg7 2. Lc3+ Kg8 3. Dxh8#
1. ... Kg7 2. Lc3+ Kg8 3. Dxh8#
Keywords: Miniature Collection (0321453), Minimal (b), Miniature, Flight giving sacrifice key, Checking key, Drag-in sacrifice, Queen sacrifice, Pawn mate
Genre: 3#
Computer test: SCHRECKE: popeye 4.87
FEN: 7n/8/4K1k1/6P1/8/6P1/8/3QB3
Reprints: 537a Problemschach-Jahrbuch 1994 D , p. 255, 1995
Input: Zuncke/Bruder, 2010-09-12
Last update: Dieter Berlin, 2023-07-23 more...
Genre: 3#
Computer test: SCHRECKE: popeye 4.87
FEN: 7n/8/4K1k1/6P1/8/6P1/8/3QB3
Reprints: 537a Problemschach-Jahrbuch 1994 D , p. 255, 1995
Input: Zuncke/Bruder, 2010-09-12
Last update: Dieter Berlin, 2023-07-23 more...
1. Lxd5+! Kxd5 2. De4+ Kxe4 3. Sc3# 2. ... Kc5 3. Ld6# 2. ... Ke6 3. Dc4#
Keywords: Flight giving sacrifice key, Checking key, Bishop sacrifice, Queen sacrifice, Drag-in sacrifice (zweifach), Model mate, Doppelmatt, Batteriematt horizontal
Genre: 3#
Computer test: Juel: Popeye 4.61
FEN: 8/3nbB2/1pk5/1N1pB2R/8/8/4K3/1Q6
Reprints: 10 Problemschach-Jahrbuch 1992 D , p. 12, 1992
Input: Dieter Berlin, 2022-11-06
Last update: Dieter Berlin, 2022-11-06 more...
Genre: 3#
Computer test: Juel: Popeye 4.61
FEN: 8/3nbB2/1pk5/1N1pB2R/8/8/4K3/1Q6
Reprints: 10 Problemschach-Jahrbuch 1992 D , p. 12, 1992
Input: Dieter Berlin, 2022-11-06
Last update: Dieter Berlin, 2022-11-06 more...
10 - P1406264
Vidadi Zamanov
Sergey Smotrov
2534 The Macedonian Problemist 66 09-12/2021
1. ehrende Erwähnung
PR Predrag Žuvic
(7+7)
s#18
Vidadi Zamanov
Sergey Smotrov
2534 The Macedonian Problemist 66 09-12/2021
1. ehrende Erwähnung
PR Predrag Žuvic
(7+7)
s#18
1. e4+? Ke5 2. Dc3+ Kd6!
1. Db4-e4+! Kd5-d6 2. De4-c6+ Kd6-e5 3. Dc6-f6+ Ke5-d5 4. Df6-e6+ Kd5-c5 5. De6-c6+ Kc5-b4 6. Lg5-e7+ Kb4-a5 7. Dc6-c7+ Ka5-a6 8. Ld7-c8+ Ka6-b5 9. Dc7-c5+ Kb5-a4 10. Dc5-a7+ Ka4-b5 11. Lc8-d7+ Kb5-c4 12. Da7-c7+ Kc4-d5 13. Dc7-d6+ Kd5-c4 14. Dd6-b4+ Kc4-d5 15. e3-e4+! Kd5-e5 16. Db4-c3+ Ke5-f4 17. Le7-g5+ Kf4xf3 18. Dc3xd3+ Lb1xd3#
1. Db4-e4+! Kd5-d6 2. De4-c6+ Kd6-e5 3. Dc6-f6+ Ke5-d5 4. Df6-e6+ Kd5-c5 5. De6-c6+ Kc5-b4 6. Lg5-e7+ Kb4-a5 7. Dc6-c7+ Ka5-a6 8. Ld7-c8+ Ka6-b5 9. Dc7-c5+ Kb5-a4 10. Dc5-a7+ Ka4-b5 11. Lc8-d7+ Kb5-c4 12. Da7-c7+ Kc4-d5 13. Dc7-d6+ Kd5-c4 14. Dd6-b4+ Kc4-d5 15. e3-e4+! Kd5-e5 16. Db4-c3+ Ke5-f4 17. Le7-g5+ Kf4xf3 18. Dc3xd3+ Lb1xd3#
Henrik Juel: Popeye 4.61 and 'non 1 1 thr 0' found no flaws (2022-11-29)
Henrik Juel: 1... Kc5? 2.Dc6+ Kb4 3.Le7+ Ka5 4.Dc7+ etc. and s#15 (2022-11-29)
comment
Henrik Juel: 1... Kc5? 2.Dc6+ Kb4 3.Le7+ Ka5 4.Dc7+ etc. and s#15 (2022-11-29)
comment
Keywords: Logical Problem, Switchback (DLk), Round Trip (D-4), Checking key, Queen sacrifice
Genre: s#
FEN: 8/3B4/8/3k2B1/1Q5P/np1pPPp1/5p2/1b3K2
Input: Marcin Banaszek, 2022-11-29
Last update: Gunter Jordan, 2023-02-26 more...
Genre: s#
FEN: 8/3B4/8/3k2B1/1Q5P/np1pPPp1/5p2/1b3K2
Input: Marcin Banaszek, 2022-11-29
Last update: Gunter Jordan, 2023-02-26 more...
11 - P1407594
Sergey Smotrov
Z378 Probleemblad 2009
2. ehrende Erwähnung
PR Hans Gruber + Dirk Borst
(4+8)
s#23
Sergey Smotrov
Z378 Probleemblad 2009
2. ehrende Erwähnung
PR Hans Gruber + Dirk Borst
(4+8)
s#23
1. Te5+? dxe5 2. Dxg6+ Txg6+ 3. Kh7!
1. Df2+! Kg4 2. Te4+ Kh3 3. Sf4+ Kg4 4. Sxg6+ Kh3 5. Te3+ Kg4 6. Dg3+ Kf5 7. Se7+ Kf6 8. Dg5+ Kf7 9. Dg8+ Kf6 10. Sd5+ Kf5 11. Dc8+ Dd7 12. Dc2+ Kg4 13. Dg6+ Kh4 14. Df6+ Kg4 15. Df3+ Kh4 16. Df2+ Kg4 17. Te4+ Kh3 18. Sf4+ Kg4 19. Sh5+ Kh3 20. Te3+ Kg4 21. Dg3+ Kf5 22. Te5+! dxe5+ 23. Dg6+ Txg6#
1. Df2+! Kg4 2. Te4+ Kh3 3. Sf4+ Kg4 4. Sxg6+ Kh3 5. Te3+ Kg4 6. Dg3+ Kf5 7. Se7+ Kf6 8. Dg5+ Kf7 9. Dg8+ Kf6 10. Sd5+ Kf5 11. Dc8+ Dd7 12. Dc2+ Kg4 13. Dg6+ Kh4 14. Df6+ Kg4 15. Df3+ Kh4 16. Df2+ Kg4 17. Te4+ Kh3 18. Sf4+ Kg4 19. Sh5+ Kh3 20. Te3+ Kg4 21. Dg3+ Kf5 22. Te5+! dxe5+ 23. Dg6+ Txg6#
Keywords: Queen sacrifice, Perpetual check, Cross check, Logical Problem, Switchback (DTSk), Round Trip (D-11 S-6), Checking key
Genre: s#
FEN: 8/8/r2p2pK/n4k1N/qp6/4R1Q1/3p4/8
Input: Gunter Jordan, 2023-02-02
Last update: Gunter Jordan, 2023-02-02 more...
Genre: s#
FEN: 8/8/r2p2pK/n4k1N/qp6/4R1Q1/3p4/8
Input: Gunter Jordan, 2023-02-02
Last update: Gunter Jordan, 2023-02-02 more...
1. Da2+? Kxc1 2. Db1+ Kd2 3. Sd1+ Ke2 4. Td3 Kf1 5. Se3+ Kf2 6. Df1+ Kg3 7. Sc4+ Kh2 8. Td2+ Kg3 9. Dg2+ Kf4 10. Td4+ Kf5 11. Df2+ Kg5 12. Ld2+ Kxh5 13. Dxh4+ Kg6 14. Dh6+ Kf5 15. De6+ fxe6#?, aber 15. ... Lxe6+!
1. Se2+! Kxe2 2. Da6+ Lb5 3. Tc2+ Kd1 4. Da1+ Kxc2 5. Tc3+ Kd2 6. Tb3+ Kc2 7. Tb2+ Kd3 8. Td2+ Ke3 9. Dg1+ Kf4 10. Td4+ Kf5 11. Df2+ Kg5 12. Ld2+ Kxh5 13. Dxh4+ Kg6 14. Dh6+ Kf5 15. De6+ fxe6#
1. Se2+! Kxe2 2. Da6+ Lb5 3. Tc2+ Kd1 4. Da1+ Kxc2 5. Tc3+ Kd2 6. Tb3+ Kc2 7. Tb2+ Kd3 8. Td2+ Ke3 9. Dg1+ Kf4 10. Td4+ Kf5 11. Df2+ Kg5 12. Ld2+ Kxh5 13. Dxh4+ Kg6 14. Dh6+ Kf5 15. De6+ fxe6#
Keywords: Discovered check, Battery creation, Pawn mate, Queen sacrifice, Perpetual check, Model mate, Sacrifice of white pieces, Switchback (k), Checking key, Selfblock
Genre: s#
FEN: 8/1n1b1p2/8/Q2K3B/1B5p/2N2R2/3k4/2R5
Input: Gunter Jordan, 2023-02-10
Last update: Felber, Volker, 2023-02-17 more...
Genre: s#
FEN: 8/1n1b1p2/8/Q2K3B/1B5p/2N2R2/3k4/2R5
Input: Gunter Jordan, 2023-02-10
Last update: Felber, Volker, 2023-02-17 more...
1. Sf4+! Kh4 2. Sg6+ Kh5 3. Df5 e6 4. Sf6+ Kh6 5. Sg8+ Kh7 6. Df7 Sd8
7. Sf8+ Kh8 8. Sf6 Sxf7 9. Sg6#
7. Sf8+ Kh8 8. Sf6 Sxf7 9. Sg6#
SCHRECKE: Dual
4. Sf4+ Kh4 5. Sxe6 g2 6. Dxg5+ Kg3 7. Df4+ Kh4 8. Sf2+
5. ... Kh3 6. Se3+ Kh2 7. Dd5 Sf3,Se4 8. Dxf3,Dxe4 (2023-03-11)
comment
4. Sf4+ Kh4 5. Sxe6 g2 6. Dxg5+ Kg3 7. Df4+ Kh4 8. Sf2+
5. ... Kh3 6. Se3+ Kh2 7. Dd5 Sf3,Se4 8. Dxf3,Dxe4 (2023-03-11)
comment
Keywords: Checking key, Queen sacrifice, Model mate
Genre: n#
FEN: K7/1n2p1p1/3p4/6p1/6N1/p4Qpk/p2n2N1/8
Reprints: 1484 Beispiele zur Ideengeschichte des Schachproblems , p. 298, 1982
Input: Dieter Berlin, 2023-03-10
Last update: Dieter Berlin, 2023-03-10 more...
Genre: n#
FEN: K7/1n2p1p1/3p4/6p1/6N1/p4Qpk/p2n2N1/8
Reprints: 1484 Beispiele zur Ideengeschichte des Schachproblems , p. 298, 1982
Input: Dieter Berlin, 2023-03-10
Last update: Dieter Berlin, 2023-03-10 more...
1. Dc6+! Kg1 2. Dh1+ Kxh1 3. Sxe3+ Kg1 4. 0-0-0+ Kf2 5. Tf1+ Ke2 6. Sg3#
3. ... Tf1+ 4. Kxf1 Tf6+ 5. Sxf6 ... 6. Kf2#
3. ... Kg1 4. 0-0-0+ Kf2 5. Tf1+ Ke2 6. Sg3#
3. ... Tf1+ 4. Kxf1 Tf6+ 5. Sxf6 ... 6. Kf2#
3. ... Kg1 4. 0-0-0+ Kf2 5. Tf1+ Ke2 6. Sg3#
1. Ta6+! Kb8 2. Da7+ Kc8 3. Tc6+ Kd8 4. Dc7+ Ke8 5. Te6+ Kf8 6. De7+ Kg8 7. Tg6+ Kh8 8. Df8+ Kh7 9. Tg7+ Kh6 10. Df6+ Kh5 11. Th7+ Kg4 12. Th4+ Kg3 13. Dg5+ Kf3 14. Dg4+ Ke3 15. Df4+ Kd3 16. Dc4+ Ke3 17. Dc3+ Sxc3#
Keywords: discovered checkmate, Aristocrat, Batteriematt horizontal, Queen sacrifice, Perpetual check, corner to corner (k), Königswanderung, Miniature, Switchback (k), Checking key
Genre: s#
FEN: k7/7Q/7R/8/8/8/8/1r1nK3
Input: Gunter Jordan, 2024-01-17
Last update: Gunter Jordan, 2024-01-17 more...
Genre: s#
FEN: k7/7Q/7R/8/8/8/8/1r1nK3
Input: Gunter Jordan, 2024-01-17
Last update: Gunter Jordan, 2024-01-17 more...
1. Db3+! Ka5 2. Db4+ Ka6 3. Dc4+ Ka5 4. Tb5+ Ka6 5. Tbc5+ Kb6 6. De6+ Dd6
7. Db3+ Ka6 8. T7c6+ Dxc6 9. Db7+ Dxb7#
7. Db3+ Ka6 8. T7c6+ Dxc6 9. Db7+ Dxb7#
Keywords: Discovered check, Aristocrat, Battery creation, Queen sacrifice, Perpetual check, Corner mate, Miniature, Minimal (d), Switchback (Dk), Checking key, Rook sacrifice
Genre: s#
FEN: K5Q1/1RR5/8/8/k7/8/7q/8
Input: Gunter Jordan, 2024-02-14
Last update: Gunter Jordan, 2024-02-14 more...
Genre: s#
FEN: K5Q1/1RR5/8/8/k7/8/7q/8
Input: Gunter Jordan, 2024-02-14
Last update: Gunter Jordan, 2024-02-14 more...
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The problems of this query have been registered by the following contributors:
Brian Stephenson (2)Zuncke/Bruder (2)
Felber, Volker (4)
Dieter Berlin (3)
Marcin Banaszek (1)
Gunter Jordan (4)
Felber, Volker: Der Autor moniert in der Schachzeitung 04/1863, Seite 108 '... die Weglassung des von mir angegebenen schwarzen Läufers auf d2'. (2018-05-02)
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