98 problem(s) found in 3334 milliseconds (displaying 98 problem(s)). [COMMENTDATE>=20200919 AND NOT K='Hilfsrückzüger' AND NOT S='Bulletin Ouvrier des Echecs' AND K='Schlüssel = Eckzug'] [download as LaTeX]
1. Ka1 c2 2. La2 c3 3. Sb2 cxb2#
2 - P1016764
Vyacheslav Kopaev
Shakhmatnaya Kompozitsiya 01-03/1992
14. Moskauer Meisterschaft
2.-3. Platz
(12+7) C+
s#2
Vyacheslav Kopaev
Shakhmatnaya Kompozitsiya 01-03/1992
14. Moskauer Meisterschaft
2.-3. Platz
(12+7) C+
s#2
1. De8? Sd8 2. Dxd8 Sb3#
1. ... Sa5 2. bxa5 Sb3#
1. ... Sc5 2. bxc5 Sb3#
1. ... Sd6!
1. Dc6? Ld7!
1. Df3? Lh3!
1. Dg2? Lg4!
1. Dh1! Ld7 2. Lxd7 Sb3#
1. ... Le6 2. Txe6 Sb3#
1. ... Lf5 2. Sxf5 Sb3#
1. ... Lg4 2. Txg4 Sb3#
1. ... Lh3 2. Txh3 Sb3#
1. ... Sa5 2. bxa5 Sb3#
1. ... Sc5 2. bxc5 Sb3#
1. ... Sd6!
1. Dc6? Ld7!
1. Df3? Lh3!
1. Dg2? Lg4!
1. Dh1! Ld7 2. Lxd7 Sb3#
1. ... Le6 2. Txe6 Sb3#
1. ... Lf5 2. Sxf5 Sb3#
1. ... Lg4 2. Txg4 Sb3#
1. ... Lh3 2. Txh3 Sb3#
Keywords: Grab, Schlüssel = Eckzug, Multiple publication
Genre: s#
FEN: k1b5/pnP5/P7/1B4P1/1P2Q2N/3pR3/1PpP4/n1K3R1
Reprints: 13628 Schweizerische Schachzeitung 05/1992
Input: Frank Müller, 2004-05-12
Last update: Marcin Banaszek, 2021-04-28 more...
Genre: s#
FEN: k1b5/pnP5/P7/1B4P1/1P2Q2N/3pR3/1PpP4/n1K3R1
Reprints: 13628 Schweizerische Schachzeitung 05/1992
Input: Frank Müller, 2004-05-12
Last update: Marcin Banaszek, 2021-04-28 more...
1. Da8! c4 2. Lb7 c3 3. Lg2 hxg2 4. Kg1 gxh1=D 5. Dxh1#
Bei 3.Lg2 hxg2 wirkt die wD nicht mit, also Loydsche Linienräumung. Beim nachfolgenden 5.Dxh1 wird die wD wieder benötigt. Dies ist also Loydsche Linienräumung und Turton gleichermaßen.
Bei 3.Lg2 hxg2 wirkt die wD nicht mit, also Loydsche Linienräumung. Beim nachfolgenden 5.Dxh1 wird die wD wieder benötigt. Dies ist also Loydsche Linienräumung und Turton gleichermaßen.
Keywords: Brian Stephenson Collection (36355), Line opening, Zugzwang-Goal, Schlüssel = Eckzug, Promotion (d), Antiphönix, Turton (DL), Loyd clearence
Genre: n#
Computer test: SCHRECKE: Gustav 4.1d
FEN: 6bq/5prk/B4Pp1/2p3P1/6P1/5QPp/2P1PP1K/7N
Reprints: 265 Rätselvolle Schachaufgaben , p. 142, 1980
Input: Brian Stephenson, 2004-08-12
Last update: Gunter Jordan, 2023-02-05 more...
Genre: n#
Computer test: SCHRECKE: Gustav 4.1d
FEN: 6bq/5prk/B4Pp1/2p3P1/6P1/5QPp/2P1PP1K/7N
Reprints: 265 Rätselvolle Schachaufgaben , p. 142, 1980
Input: Brian Stephenson, 2004-08-12
Last update: Gunter Jordan, 2023-02-05 more...
Korrektur in Deutsche Schachzeitung 10/1872
1. Th8 Lb4 2. Sc3+ Lxc3 3. Da8+ La5 4. Dg8+ Txg8#
Feldräumung und Bahnung
1. Th8 Lb4 2. Sc3+ Lxc3 3. Da8+ La5 4. Dg8+ Txg8#
Feldräumung und Bahnung
Keywords: white Bristol, Schlüssel = Eckzug, corner to corner (T), Batteriematt diagonal, discovered checkmate
Genre: s#
FEN: R7/1Q6/1p3p1p/b2NpP2/4K3/3NP3/kBB3r1/r6b
Input: HBae, 2009-02-06
Last update: Gunter Jordan, 2022-11-26 more...
Genre: s#
FEN: R7/1Q6/1p3p1p/b2NpP2/4K3/3NP3/kBB3r1/r6b
Input: HBae, 2009-02-06
Last update: Gunter Jordan, 2022-11-26 more...
1. ... Ta8 2. Dd7 Th8 3. Dg7 hxg7 4. Kb6 g8=D 5. Ka5 Dd8#
First T-move waiting and hiding, second T-move waiting and hiding! Tryx 1. ... Tb6? 2.D beliebig ?? 3.Dg7, as in solution, but no second white waiting move!
Yuri Bilokin: For a complex idea, it was necessary to turn into a black rook, but what to do with the possibilities of building a final faster than h#4: 1.Qd7 Rb6 2.Qg7 hxg7 3.Kxb6 g8=Q 4.Ka5 Qd8#
1.Qd7 Ra8 2.Qg7 hxg7 3.Kb6 g8=Q 4.Ka5 Qd8#
1.Qd7 Rh8 2.Qg7 hxg7 3.Kb6 g8=Q 4.Ka5 Qd8# (2022-05-07)
comment
Yuri Bilokin: For a complex idea, it was necessary to turn into a black rook, but what to do with the possibilities of building a final faster than h#4: 1.Qd7 Rb6 2.Qg7 hxg7 3.Kxb6 g8=Q 4.Ka5 Qd8#
1.Qd7 Ra8 2.Qg7 hxg7 3.Kb6 g8=Q 4.Ka5 Qd8#
1.Qd7 Rh8 2.Qg7 hxg7 3.Kb6 g8=Q 4.Ka5 Qd8# (2022-05-07)
comment
Keywords: Schlüssel = Eckzug, Tempo Loss, Line opening, corner to corner (T), Promotion (D), Phoenix, Anti-Bristol
Genre: h#
Computer test: Popeye Windows-32Bit v4.47 (100000 KB)
FEN: 1Rq5/n1k4p/p3p1pP/1p4pr/rb4Kp/5r2/8/3b2n1
Reprints: II mpk-Blätter 143 03/2022
Input: GüBü, 2009-06-08
Last update: Gunter Jordan, 2022-03-16 more...
Genre: h#
Computer test: Popeye Windows-32Bit v4.47 (100000 KB)
FEN: 1Rq5/n1k4p/p3p1pP/1p4pr/rb4Kp/5r2/8/3b2n1
Reprints: II mpk-Blätter 143 03/2022
Input: GüBü, 2009-06-08
Last update: Gunter Jordan, 2022-03-16 more...
1. Th1! b6 2. Dg1 bxa5 3. Da1 a4 4. Tb1 axb3#
Keywords: Round Trip, white Bristol (reziprok TD/DT), Minimal (b), Schlüssel = Eckzug, Obvious promotion
Genre: s#
FEN: 8/Bp6/8/PP6/2kPP3/PR6/KP1P4/QR6
Input: Frank Müller, 2009-07-17
Last update: Gunter Jordan, 2022-11-26 more...
Genre: s#
FEN: 8/Bp6/8/PP6/2kPP3/PR6/KP1P4/QR6
Input: Frank Müller, 2009-07-17
Last update: Gunter Jordan, 2022-11-26 more...
1. a8=D+ Sf3 2. Dxf3+ Kg1 3. Lh2+ Kxh2 4. Kb4 Kg1 5. Kxc3 Kh2 6. Kd4 Kg1 7. Ke5 Kh2 8. Kf6 Kg1 9. Kg7 Kh2 10. Kh8 Kg1 11. Se2+ Kh2 12. Dg3+ Kh1 13. Sf4 c1=D,c1=~ 14. Dg2+ Txg2#
Moldenhauer: Computerprüfung: C+ Gustav 4.1d 4 Tage 6 Std. 38 Min.
Gustav hat nur im 13. Zug Se2-f4 c2-c1D. Warum nicht c2-c1T? (2022-12-15)
Olaf Jenkner: Weil es schöner aussieht.
Man sieht alle Varianten, wenn "Züge nicht zusammenfassen" aktiviert ist. (2022-12-16)
Moldenhauer: Danke!! Ein Gutes Neues auch von mir!! (2022-12-16)
more ...
comment
Gustav hat nur im 13. Zug Se2-f4 c2-c1D. Warum nicht c2-c1T? (2022-12-15)
Olaf Jenkner: Weil es schöner aussieht.
Man sieht alle Varianten, wenn "Züge nicht zusammenfassen" aktiviert ist. (2022-12-16)
Moldenhauer: Danke!! Ein Gutes Neues auch von mir!! (2022-12-16)
more ...
comment
Keywords: Königswanderung, Schlüssel = Eckzug, Promotion key, Promotion (D), discovered checkmate, Corner mate, Batteriematt diagonal
Genre: s#
FEN: 1B6/P7/8/8/8/Kpp5/prp5/bbN3nk
Reprints: 12) idee & form 154, p. 5215, 04/2022
Input: Frank Müller, 2010-01-22
Last update: Olaf Jenkner, 2022-12-16 more...
Genre: s#
FEN: 1B6/P7/8/8/8/Kpp5/prp5/bbN3nk
Reprints: 12) idee & form 154, p. 5215, 04/2022
Input: Frank Müller, 2010-01-22
Last update: Olaf Jenkner, 2022-12-16 more...
1. La8! droht 2. Sc3+ c6 3. Dg2+ hxg2#
1. ... c5 2. bxc4 droht 3. Sd4+ cxd4 4. Dd1+ Dxd1#
2. ... Sxc2 3. Dd3+ Se3 4. Sxf2+ Kxf2 5. Dxe3+ Kf1 6. Lg2+ hxg2#
2. ... Db4 3. Sd4+ cxd4 4. f8=D,T+ Dxf8 5. Sc3+ Dxa8 6. Dg2+ hxg2#
1. ... c5 2. bxc4 droht 3. Sd4+ cxd4 4. Dd1+ Dxd1#
2. ... Sxc2 3. Dd3+ Se3 4. Sxf2+ Kxf2 5. Dxe3+ Kf1 6. Lg2+ hxg2#
2. ... Db4 3. Sd4+ cxd4 4. f8=D,T+ Dxf8 5. Sc3+ Dxa8 6. Dg2+ hxg2#
Anton Baumann: es muss heissen:
2. ... Db4 3.Sd4+ cxd4 4.f8=D,T+ Dxf8 5.Sc3+ Dxa8 6.Dg2+ hxg2# (2022-11-14)
Henrik Juel: C+ Popeye 4.61, except for the promotion dual 4.f8=DT+ (2022-11-20)
comment
2. ... Db4 3.Sd4+ cxd4 4.f8=D,T+ Dxf8 5.Sc3+ Dxa8 6.Dg2+ hxg2# (2022-11-14)
Henrik Juel: C+ Popeye 4.61, except for the promotion dual 4.f8=DT+ (2022-11-20)
comment
Keywords: Schlüssel = Eckzug, Corner mate
Genre: s#
FEN: 8/2p2P2/8/pp1B4/q1p1N1p1/nP3kPp/2NP1p1P/5Q1K
Input: Frank Müller, 2010-04-05
Last update: Marcin Banaszek, 2022-11-27 more...
Genre: s#
FEN: 8/2p2P2/8/pp1B4/q1p1N1p1/nP3kPp/2NP1p1P/5Q1K
Input: Frank Müller, 2010-04-05
Last update: Marcin Banaszek, 2022-11-27 more...
1. Sh8! Lc1 2. Sg6 Lg5 3. Kb7 Lc1 4. Sxh4 ... 5. Lg2#
3. ... Ld8 4. Sf4 ... 5. Lg2#
1. ... Lc7 2. Sg6 Lg3 3. Kb7 Lb8 4. Sxh4 ... 5. Lg2#
3. ... Le1 4. Sf4 ... 5. Lg2#
Unschwer ist zu sehen, daß in dieser Miniatur zwei weiße Figuren den schwarzen König erst einmal in der Ecke festhalten müssen. Folglich muß Verstärkung heran und dabei der Lf4 ausmanövriert werden. Am Ende steht ein Mustermatt.
3. ... Ld8 4. Sf4 ... 5. Lg2#
1. ... Lc7 2. Sg6 Lg3 3. Kb7 Lb8 4. Sxh4 ... 5. Lg2#
3. ... Le1 4. Sf4 ... 5. Lg2#
Unschwer ist zu sehen, daß in dieser Miniatur zwei weiße Figuren den schwarzen König erst einmal in der Ecke festhalten müssen. Folglich muß Verstärkung heran und dabei der Lf4 ausmanövriert werden. Am Ende steht ein Mustermatt.
Keywords: Schlüssel = Eckzug, Miniature, Focus, Model mate
Genre: n#
FEN: K7/5N2/8/8/5b1p/5N1B/8/7k
Input: Zuncke/Bruder, 2010-09-11
Last update: Rainer Staudte, 2023-04-26 more...
Genre: n#
FEN: K7/5N2/8/8/5b1p/5N1B/8/7k
Input: Zuncke/Bruder, 2010-09-11
Last update: Rainer Staudte, 2023-04-26 more...
1. Ta1 b6 2. Le1 b5 3. La5 b4 4. Kc1 Kc3 5. Ta3#
CH-LB* IM
vf: +wBe3, -sBd4, Andrei Seliwanow, 10.1997, Smena (Moskwa)
Felber, Volker: siehe dazu auch die Nachläufer unter P1121891 und P1411093 (2023-07-24)
comment
vf: +wBe3, -sBd4, Andrei Seliwanow, 10.1997, Smena (Moskwa)
Felber, Volker: siehe dazu auch die Nachläufer unter P1121891 und P1411093 (2023-07-24)
comment
Keywords: Miniature Collection (0343097), Schlüssel = Eckzug, Miniature, Indian, pin-mate, Ideal mate
Genre: n#
Computer test: %Popeye FreeBSD-4.3-RELEASE-32Bit-Version 3.75
FEN: R7/1p6/8/8/3p4/1k1P4/3B4/1K6
Input: Zuncke/Bruder, 2010-09-11
Last update: Gunter Jordan, 2023-07-24 more...
Genre: n#
Computer test: %Popeye FreeBSD-4.3-RELEASE-32Bit-Version 3.75
FEN: R7/1p6/8/8/3p4/1k1P4/3B4/1K6
Input: Zuncke/Bruder, 2010-09-11
Last update: Gunter Jordan, 2023-07-24 more...
1. a8=L Ka6 2. Ka3 Kb5 3. Lb7 Kc4 4. Sd6#
Keywords: Miniature Collection (0328371), under-promotion key, under-promotion (L), Miniature, Minimal (b), Schlüssel = Eckzug, Ideal mate, Switchback (k)
Genre: n#
FEN: 2N5/P7/1B6/1k6/8/1K1p4/3P4/8
Input: Zuncke/Bruder, 2010-09-11
Last update: Gunter Jordan, 2023-12-06 more...
Genre: n#
FEN: 2N5/P7/1B6/1k6/8/1K1p4/3P4/8
Input: Zuncke/Bruder, 2010-09-11
Last update: Gunter Jordan, 2023-12-06 more...
* 1. ... Kd6 2. Sg4 Kd5 3. Sxf6+ Kd6 4. Te6#
1. Sh1! Kd6 2. Sg3 Kd5 3. Le6+ Kd6 4. Sf5#
1. Sh1! Kd6 2. Sg3 Kd5 3. Le6+ Kd6 4. Sf5#
Keywords: Miniature, Model mate, Schlüssel = Eckzug (S)
Genre: n#
FEN: 8/1p6/1K3p2/3k1B2/4R3/8/5N2/8
Input: Felber, Volker, 2010-09-11
Last update: James Malcom, 2021-03-10 more...
Genre: n#
FEN: 8/1p6/1K3p2/3k1B2/4R3/8/5N2/8
Input: Felber, Volker, 2010-09-11
Last update: James Malcom, 2021-03-10 more...
1. Sa8 Kb5 2. Sc7+ Kc5 3. b4#
2. ... Ka4 2. b3#
1. ... Kd5 2. Sc7+ Kc5 3. b4#
2. ... Ka4 2. b3#
1. ... Kd5 2. Sc7+ Kc5 3. b4#
1. Sa1 Kxa1 2. Lxa2 Kb1 3. Lc4 Kc2 4. Sc5 Kc3 5. Lb5 Kb4,Kd4 6. Sb7 Ka4,Kc4 7. Kc7 Kb4 8. La6 Kb5 9. Sd8 Ka5 10. Sc6#
1. Ta1! Kh4 2. Th1 Kg5 3. h4#
1. ... h4 2. Tg1+ Kh5 3. Lg6#
1. ... h4 2. Tg1+ Kh5 3. Lg6#
Keywords: Miniature Collection (0329571), Minimal (b), Miniature, corner to corner (T), Pawn mate, Model mate, Schlüssel = Eckzug
Genre: 3#
Computer test: SCHRECKE: popeye 4.89
FEN: R5N1/8/8/5Bkp/4K3/8/7P/8
Input: Zuncke/Bruder, 2010-09-12
Last update: Dieter Berlin, 2024-03-06 more...
Genre: 3#
Computer test: SCHRECKE: popeye 4.89
FEN: R5N1/8/8/5Bkp/4K3/8/7P/8
Input: Zuncke/Bruder, 2010-09-12
Last update: Dieter Berlin, 2024-03-06 more...
1. Ta1! Kb4 2. Kd4 Kb3 3. Sc4 Kb4 4. Tb1#
3. ... Kc2 4. La4#
1. ... Kb6 2. Kd6 Kb7 3. Lc6+ Kb8,Kc8 4. Ta8#
3. ... Kb6 4. Sc4#
3. ... Kc2 4. La4#
1. ... Kb6 2. Kd6 Kb7 3. Lc6+ Kb8,Kc8 4. Ta8#
3. ... Kb6 4. Sc4#
Keywords: Miniature Collection (0330429), Aristocrat, Miniature, Rex solus (s), Symbol problem (Weihnachtsbaum), Schlüssel = Eckzug, Switchback (k)
Genre: n#
Computer test: SCHRECKE: Gustav 4.2b
FEN: 8/3B4/8/2k1K3/8/8/1N3N2/3R4
Input: Zuncke/Bruder, 2010-09-12
Last update: Gunter Jordan, 2022-11-19 more...
Genre: n#
Computer test: SCHRECKE: Gustav 4.2b
FEN: 8/3B4/8/2k1K3/8/8/1N3N2/3R4
Input: Zuncke/Bruder, 2010-09-12
Last update: Gunter Jordan, 2022-11-19 more...
* 1. ... Kh1 2. Lf1 Kh2 3. Sxf3+ Kh1 4. Lg2#
1. Lg4 Kh1 2. Lxf3+ Kh2 3. Lg2 f3 4. Sxf3#
1. Lg4 Kh1 2. Lxf3+ Kh2 3. Lg2 f3 4. Sxf3#
Keywords: Miniature Collection (0345781), Miniature, Schlüssel = Eckzug (im *), Switchback (k), Exchange of roles (L-S)
Genre: n#
FEN: 8/8/8/8/5p2/5p1B/5K1k/6N1
Input: Zuncke/Bruder, 2010-09-12
Last update: Gunter Jordan, 2024-01-16 more...
Genre: n#
FEN: 8/8/8/8/5p2/5p1B/5K1k/6N1
Input: Zuncke/Bruder, 2010-09-12
Last update: Gunter Jordan, 2024-01-16 more...
1. Dh8
A14DB
SCHRECKE: C+, popeye 4.87
1.Dh8! (Zugzwang)
1. ... K:d7,K:f7 2.e8D#
1. ... K:e7 2.De8#
1. ... Kd5 2.De5# (2022-07-25)
comment
SCHRECKE: C+, popeye 4.87
1.Dh8! (Zugzwang)
1. ... K:d7,K:f7 2.e8D#
1. ... K:e7 2.De8#
1. ... Kd5 2.De5# (2022-07-25)
comment
1. Tf1? Lf7!
1. Ta1! Lc6 2. Tf1 Lf3 3. e6 La8 4. Tf8#
1. Ta1! Lc6 2. Tf1 Lf3 3. e6 La8 4. Tf8#
D27a ROn-L
vf: a1<>h1, Bernhard Schauer, 08.12.1988, STERN 50/88, #1238
Henrik Juel: C+ Popeye 4.61, except for some mate duals (2022-11-18)
comment
vf: a1<>h1, Bernhard Schauer, 08.12.1988, STERN 50/88, #1238
Henrik Juel: C+ Popeye 4.61, except for some mate duals (2022-11-18)
comment
1. La8 Db7,Dxa8 2. Df4+ De4 3. Sc2+ dxc2#
1. La8 Dc8,Dc7 2. Dc4+ Dxc4 3. Se2+ dxe2#
1. La8 Dxd8 2. Df4+ Se4 3. Df2+ Sxf2#
1. La8 Dc8,Dc7 2. Dc4+ Dxc4 3. Se2+ dxe2#
1. La8 Dxd8 2. Df4+ Se4 3. Df2+ Sxf2#
Keywords: Domination, Echo, Schlüssel = Eckzug
Genre: s#
Computer test: SCHRECKE: popeye 4.89
FEN: 1q1R4/p4Q2/PpBn4/1R6/3k4/1P1p4/3P2P1/2NKN3
Input: Frank Müller, 2011-01-29
Last update: Dieter Berlin, 2024-02-21 more...
Genre: s#
Computer test: SCHRECKE: popeye 4.89
FEN: 1q1R4/p4Q2/PpBn4/1R6/3k4/1P1p4/3P2P1/2NKN3
Input: Frank Müller, 2011-01-29
Last update: Dieter Berlin, 2024-02-21 more...
1. La1! Txd8+ 2. Td7+ b2#
1. ... Te8 2. Te7+ b2#
1. ... Tf8 2. Tf7+ b2#
Korrektur (-wBa3) 07/1964, Seite 220. Unter Nr. 4602 nochmals mit wBa3 erschienen.
1. ... Te8 2. Te7+ b2#
1. ... Tf8 2. Tf7+ b2#
Korrektur (-wBa3) 07/1964, Seite 220. Unter Nr. 4602 nochmals mit wBa3 erschienen.
Henrik Juel: 10 threats
the only correct variation is 1... Txd8+
after 1... Te8,Tf8 all threats work (2022-11-29)
comment
the only correct variation is 1... Txd8+
after 1... Te8,Tf8 all threats work (2022-11-29)
comment
Keywords: Schlüssel = Eckzug, Critical move
Genre: s#
FEN: 3R2rk/6Rp/7N/1p6/bP1B4/1p2p3/4Pp2/3K1N2
Input: Frank Müller, 2011-09-17
Last update: Felber, Volker, 2022-11-29 more...
Genre: s#
FEN: 3R2rk/6Rp/7N/1p6/bP1B4/1p2p3/4Pp2/3K1N2
Input: Frank Müller, 2011-09-17
Last update: Felber, Volker, 2022-11-29 more...
1. Ta1! Kxe5 2. Lf4+ Kf5 3. Tg1
1. ... Kxg5 2. Sxg6 ... 3. Th1
1. ... Kxg5 2. Sxg6 ... 3. Th1
Keywords: Schlüssel = Eckzug, corner to corner (T)
Genre: n#
FEN: 5b2/4pKp1/4p1p1/4NkB1/8/4PB2/p7/5R2
Input: Felber, Volker, 2011-11-25
Last update: Gunter Jordan, 2023-06-28 more...
Genre: n#
FEN: 5b2/4pKp1/4p1p1/4NkB1/8/4PB2/p7/5R2
Input: Felber, Volker, 2011-11-25
Last update: Gunter Jordan, 2023-06-28 more...
1. Da1! droht 2. Td4+ Lc4 3. Db2+ axb2 4. a3+ Kxa3#
1. ... Lxd5 2. Lf8+ Td6 3. Txg4+ Lc4 4. Ke1 d2#
3. ... Le4 4. Kc1 d2#
1. ... Lxd7 2. Txb5+ Lxb5 3. Db2+ axb2 4. a3+ Kxa3#
1. ... Lxd5 2. Lf8+ Td6 3. Txg4+ Lc4 4. Ke1 d2#
3. ... Le4 4. Kc1 d2#
1. ... Lxd7 2. Txb5+ Lxb5 3. Db2+ axb2 4. a3+ Kxa3#
Keywords: Anti-Kritikus, ambush (zweifach), Schlüssel = Eckzug, Pawn mate
Genre: s#
Computer test: SCHRECKE: Gustav 4.2a
FEN: 7Q/3N4/1p2b1rB/bp1R2R1/1k4p1/p2pN1p1/P2K2P1/3B4
Reprints: 341 Versunkene Schätze , p. 143, 1998
Input: Frank Müller, 2012-07-11
Last update: Dieter Berlin, 2022-10-15 more...
Genre: s#
Computer test: SCHRECKE: Gustav 4.2a
FEN: 7Q/3N4/1p2b1rB/bp1R2R1/1k4p1/p2pN1p1/P2K2P1/3B4
Reprints: 341 Versunkene Schätze , p. 143, 1998
Input: Frank Müller, 2012-07-11
Last update: Dieter Berlin, 2022-10-15 more...
1. Da8! b1=S 2. a4 Sa3 3. Da6+ Sb5,Sc4 4. axb5,Db5 c2#
1. ... b1=L 2. Dg8 La2 3. Db3 Lb1 4. Dc2+ Lxc2#
1. ... b1=L 2. Dg8 La2 3. Db3 Lb1 4. Dc2+ Lxc2#
Keywords: Schlüssel = Eckzug, under-promotion B/S
Genre: s#
FEN: 8/3p4/3N4/P4N2/1P6/P1pk4/1p1p4/3K3Q
Input: Frank Müller, 2013-04-26
Last update: Marcin Banaszek, 2021-12-30 more...
Genre: s#
FEN: 8/3p4/3N4/P4N2/1P6/P1pk4/1p1p4/3K3Q
Input: Frank Müller, 2013-04-26
Last update: Marcin Banaszek, 2021-12-30 more...
1. Th1 Kd6 2. Ke2 Ke5 3. Kf1 Kf4 4. Kg1 Kg3 5. f1=L Lf2#
Keywords: Minimal (L), under-promotion (l), Schlüssel = Eckzug, Selfblock, Ideal mate, Remote selfblock, Miniature
Genre: h#
Computer test: Gustav 4.2a, Brute Force
FEN: 8/2K5/7r/8/8/8/5p2/3kB3
Input: Felber, Volker, 2013-04-29
Last update: Alfred Pfeiffer, 2022-08-01 more...
Genre: h#
Computer test: Gustav 4.2a, Brute Force
FEN: 8/2K5/7r/8/8/8/5p2/3kB3
Input: Felber, Volker, 2013-04-29
Last update: Alfred Pfeiffer, 2022-08-01 more...
* 1. ... Lg2,Lh3 2. Dxe2+ Txe2#
1. Dh1! Lg2,Lh3 2. Dxe1+ dxe1=D#
1. Dh1! Lg2,Lh3 2. Dxe1+ dxe1=D#
Keywords: Schlag Satzmattfigur, Schlüssel = Eckzug, discovered checkmate, Batteriematt diagonal, Changed continuation, Fata Morgana (Typ Weber)
Genre: s#
FEN: 8/8/8/3ppp1Q/4p3/4K3/1p1ppB2/1Bbkrb2
Input: Felber, Volker, 2014-11-25
Last update: Gunter Jordan, 2023-11-16 more...
Genre: s#
FEN: 8/8/8/3ppp1Q/4p3/4K3/1p1ppB2/1Bbkrb2
Input: Felber, Volker, 2014-11-25
Last update: Gunter Jordan, 2023-11-16 more...
1. Sa1! droht 2. Db3+ cxb3#
1. ... Te2 2. Dxc4+ Dxc4#
1. ... Sd4 2. Dxc4+ Lxc4#
1. ... Sd3 2. Sc5+ Sxc5#
1. ... Te2 2. Dxc4+ Dxc4#
1. ... Sd4 2. Dxc4+ Lxc4#
1. ... Sd3 2. Sc5+ Sxc5#
Keywords: Schlüssel = Eckzug, discovered checkmate
Genre: s#
Computer test: SCHRECKE: popeye 4.89
FEN: 8/PN6/KP6/5n2/k1p1rq2/p1B5/Q1N2np1/5b2
Input: Frank Müller, 2014-11-29
Last update: Marcin Banaszek, 2024-02-16 more...
Genre: s#
Computer test: SCHRECKE: popeye 4.89
FEN: 8/PN6/KP6/5n2/k1p1rq2/p1B5/Q1N2np1/5b2
Input: Frank Müller, 2014-11-29
Last update: Marcin Banaszek, 2024-02-16 more...
1. Ta1+ Lxa1 2. Db2+ Kxb2 3. c3+ Kxc3 4. Ld4+ Kxd4 5. e5+ Kxe5 6. Tf6 Kxf6 7. Sf7 Kxf7#
Keywords: discovered checkmate, bi-coloured Bristol, Battery creation, Batteriematt diagonal, Minimal, Sacrifice of black pieces, Sacrifice key, Checking key, Schlüssel = Eckzug
Genre: h#
FEN: 7k/6qp/r3pB1n/8/1np5/4b3/r7/1K6
Input: Gunter Jordan, 2018-10-28
Last update: Gunter Jordan, 2018-10-28 more...
Genre: h#
FEN: 7k/6qp/r3pB1n/8/1np5/4b3/r7/1K6
Input: Gunter Jordan, 2018-10-28
Last update: Gunter Jordan, 2018-10-28 more...
29 - P1372732
Zlatko Mihajloski
H4257 The Problemist 27-4, p. 153, 07/2019
2. Lob
Abt. h#n
PR Viktoras Paliulionis
(2+4) C+
h#8
0.1.1...
Zlatko Mihajloski
H4257 The Problemist 27-4, p. 153, 07/2019
2. Lob
Abt. h#n
PR Viktoras Paliulionis
(2+4) C+
h#8
0.1.1...
1. ... La1 2. Th7+ Kg8 3. Lh8 Lg7 4. Sh5 Kf7 5. Kf4 Ke6 6. Kg5 Lf6+ 7. Kh6 Kf5 8. Lg7 Lg5#
Yuri Bilokin: you can see 1.Rh7+ Kg8 2.Bh8 Bg7 3.Sh5 Kf7 4.Kf4 Ke6 5.Kg5 Bf6+ 6.Kh6 Kf5 7.Bg7 Bg5# (2023-01-02)
comment
comment
Keywords: Aristocrat, Minimal (L), Miniature, Schlüssel = Eckzug
Genre: h#
Computer test: Popeye WINDOWS98-32Bit-Version 3.77 (8192KB)
FEN: 7K/6r1/8/8/5n2/2b1k3/1B6/8
Input: Felber, Volker, 2020-02-17
Last update: Gunter Jordan, 2023-03-09 more...
Genre: h#
Computer test: Popeye WINDOWS98-32Bit-Version 3.77 (8192KB)
FEN: 7K/6r1/8/8/5n2/2b1k3/1B6/8
Input: Felber, Volker, 2020-02-17
Last update: Gunter Jordan, 2023-03-09 more...
30 - P1379507
Torsten Linss
1533 Julias Fairies 29/08/2020
3. Lob, JF II/2020 (Hans Gruber)
(4+2) C+
hs#11.5
Torsten Linss
1533 Julias Fairies 29/08/2020
3. Lob, JF II/2020 (Hans Gruber)
(4+2) C+
hs#11.5
1. ... La1 2. f4 Kb2 3. Kf6 Kb3+ 4. Kg5 Ld4 5. f5 Kc4 6. f6 Kd5 7. f7 Le5 8. f8=D Ke6 9. Dc5 Kf7 10. h7 Lh8 11. Kh6 Kf6 12. Dh5 Lg7#
James Malcom: Is this longest known hs#? It's the longest I found on PDB. (2021-01-01)
Vitaly Medintsev: Take a look at P1388768 :) (2021-07-11)
SCHRECKE: See P1384353 (2021-07-11)
comment
Vitaly Medintsev: Take a look at P1388768 :) (2021-07-11)
SCHRECKE: See P1384353 (2021-07-11)
comment
Keywords: Excelsior white (D), Round Trip (b linear), Critical move, Schlüssel = Eckzug, Model mate, Indian, Check Protection, Liniensperrung, Minimal (l), Promotion, corner to corner (l), Selfblock, Miniature
Genre: Fairies
FEN: 8/4K1b1/7P/8/4R3/8/5P2/2k5
Input: TLi, 2020-08-30
Last update: TLi, 2022-06-12 more...
Genre: Fairies
FEN: 8/4K1b1/7P/8/4R3/8/5P2/2k5
Input: TLi, 2020-08-30
Last update: TLi, 2022-06-12 more...
1. Tc8? Kd7 2. Dh3# 1. ... Kf7!
1. Tg8? Kf7 2. Dd5# 1. ... Kd7!
1. Da8! Kf7 2. Dg8#
1. ... Kd7 2. Dc8#
1. ... Kf5 2. De4#
1. Tg8? Kf7 2. Dd5# 1. ... Kd7!
1. Da8! Kf7 2. Dg8#
1. ... Kd7 2. Dc8#
1. ... Kf5 2. De4#
32 - P1382584
Reinhardt Fiebig
PS3535 The Problemist Supplement 166, p. 79, 05/2020
(2+7) C+
h#5
0.1.1...
Reinhardt Fiebig
PS3535 The Problemist Supplement 166, p. 79, 05/2020
(2+7) C+
h#5
0.1.1...
1. ... Db2-h8 2. Ld8 Dxf8 3. Le7 Db8 4. Kg7 Db2+ 5. Kf8 Db2-h8#
Meeraner, Urform, Themafigur: wD
Meeraner, Urform, Themafigur: wD
Keywords: Minimal (D), Schlüssel = Eckzug, Round Trip (D-4+1), Meerane-Thema, Klasinc theme (D-k), Model mate, Remote selfblock, Kniest Theme
Genre: h#
Computer test: Popeye WINDOWS98-32Bit-Version 3.77 (8192KB)
FEN: 5n2/5p2/3n2k1/b1p4p/8/8/1Q6/K7
Input: Felber, Volker, 2020-11-29
Last update: Gunter Jordan, 2021-04-15 more...
Genre: h#
Computer test: Popeye WINDOWS98-32Bit-Version 3.77 (8192KB)
FEN: 5n2/5p2/3n2k1/b1p4p/8/8/1Q6/K7
Input: Felber, Volker, 2020-11-29
Last update: Gunter Jordan, 2021-04-15 more...
1. ... La8 2. Kf2 Kb7 3. Kf3 hxg3 4. Ke4 Ka7+ 5. Kxd4 Lh1 6. Kc5 g2 7. Kc6 g1=D+ 8. Kc7 La8 9. Lc5+ Dxc5#
SCHRECKE: 1. ... La8 2.Kf2 Kb7 3.Kf3 h:g3 4.Ke4 Ka7+ 5.K:d4 Lh1 6.Kc5 g2 7.Kc6 g1D+ 8.Kc7 La8 9.Lc5+ D:c5#
Nebenlösungen (von den Schwalbe-Lösern KHS+WW gefunden):
1. ... La8 2.g4 Kb7 3.Kh1 h3 4.g5 h2 5.g6 a5 6.g:f7 Sd7 7.Lc5 Sf6 8.f8D Sg4 9.Dc8+ K:c8#
1. ... Se5 2.La3 Sc4 3.d:c4 La8 4.c5 Se6 5.c6 Sf4 6.c7 Kb7 7.Lc5 h:g3 8.Kh1 Se2 9.c8D+ K:c8# (2020-12-26)
comment
Nebenlösungen (von den Schwalbe-Lösern KHS+WW gefunden):
1. ... La8 2.g4 Kb7 3.Kh1 h3 4.g5 h2 5.g6 a5 6.g:f7 Sd7 7.Lc5 Sf6 8.f8D Sg4 9.Dc8+ K:c8#
1. ... Se5 2.La3 Sc4 3.d:c4 La8 4.c5 Se6 5.c6 Sf4 6.c7 Kb7 7.Lc5 h:g3 8.Kh1 Se2 9.c8D+ K:c8# (2020-12-26)
comment
Keywords: Promotion (d), corner to corner (l), Schlüssel = Eckzug, Indian, Switchback (l), Rücknahme Schlüsselzug
Genre: Fairies
FEN: 2k2n2/5n2/p2B4/8/3p3p/3P2P1/8/6Kb
Input: Gerd Wilts, 2020-12-23
Last update: Gunter Jordan, 2020-12-27 more...
Genre: Fairies
FEN: 2k2n2/5n2/p2B4/8/3p3p/3P2P1/8/6Kb
Input: Gerd Wilts, 2020-12-23
Last update: Gunter Jordan, 2020-12-27 more...
1. Dh1 Ld8 2. Kg2 Ke7 3. Kf3 Kf6 4. Ke4 Kg5 5. Ke5 Le7 6. De4 Lf6#
Keywords: black Bristol, white Bristol, Klasinc theme (L-K, d-k), Minimal (L), Switchback (Ld), Schlüssel = Eckzug, Selfblock, Tempo Loss
Genre: h#
FEN: 7n/3K4/3ppBp1/3p4/3pq3/1n1rp3/5b2/6k1
Input: Gunter Jordan, 2020-12-27
Last update: Alain Brobecker, 2021-10-22 more...
Genre: h#
FEN: 7n/3K4/3ppBp1/3p4/3pq3/1n1rp3/5b2/6k1
Input: Gunter Jordan, 2020-12-27
Last update: Alain Brobecker, 2021-10-22 more...
1. Ta8! a2 2. Txa2+ bxa2 3. Kxc2 droht 4. Dd1#
3. ... Txf3 4. g8=D droht 5. Dg1#
4. ... Tg3 5. Dxa2+ Kxa2 6. fxg3 Ka1 7. g4 Ka2 8. g5 Ka1 9. g6 Ka2 10. g7 Ka1 11. g8=T Ka2 12. Ta8#
3. ... Txf3 4. g8=D droht 5. Dg1#
4. ... Tg3 5. Dxa2+ Kxa2 6. fxg3 Ka1 7. g4 Ka2 8. g5 Ka1 9. g6 Ka2 10. g7 Ka1 11. g8=T Ka2 12. Ta8#
Keywords: corner to corner (T), Excelsior white, Phoenix, Schlüssel = Eckzug, Siegfried Theme (t), Promotion (D), under-promotion (T)
Genre: n#
FEN: 7R/2p3P1/2P5/8/3p4/pp1P1Q1r/1PpP1P2/k1K5
Input: Gunter Jordan, 2021-01-16
Last update: Rainer Staudte, 2021-02-27 more...
Genre: n#
FEN: 7R/2p3P1/2P5/8/3p4/pp1P1Q1r/1PpP1P2/k1K5
Input: Gunter Jordan, 2021-01-16
Last update: Rainer Staudte, 2021-02-27 more...
1. Ta1! Ka8 2. Ka4 Ka7 3. Ka3 ... 4. Ka2 ... 5. Kb1#
Keywords: discovered checkmate, white Bristol, Batteriematt vertikal, Königsbatterie, Model mate (Gnaden-), Schlüssel = Eckzug
Genre: n#
Computer test: C+, Gustav 4.1d, Brute Force
FEN: 8/k1p5/2p1p3/K1p1P3/R1P5/1R6/1P6/8
Reprints: 6 Die Schwalbe 288A, p. lxxx, 12/2017
Input: Gunter Jordan, 2021-01-27
Last update: Gunter Jordan, 2021-01-27 more...
Genre: n#
Computer test: C+, Gustav 4.1d, Brute Force
FEN: 8/k1p5/2p1p3/K1p1P3/R1P5/1R6/1P6/8
Reprints: 6 Die Schwalbe 288A, p. lxxx, 12/2017
Input: Gunter Jordan, 2021-01-27
Last update: Gunter Jordan, 2021-01-27 more...
37 - P1386489
Aurel M. Karpati
Adrian Storisteanu
Yuri Bilokin
Hans-Jürgen Manthey
Viktoras Paliulionis
Andrew Buchanan
PDB Website 15/02/2021
AK, correction AS, YB, HJM, VP & AB
(7+4) C+
h#5
Aurel M. Karpati
Adrian Storisteanu
Yuri Bilokin
Hans-Jürgen Manthey
Viktoras Paliulionis
Andrew Buchanan
PDB Website 15/02/2021
AK, correction AS, YB, HJM, VP & AB
(7+4) C+
h#5
1. b2xa1=S Sc4 2. Sxb3 Se3 3. Sd4 Lc4 4. Sdf3 Lf1 5. Sg1 Lg2#
corrects and simplifies P0552475
A.Buchanan: Please forgive me but I think “under-promotion” is only meaningful for directmates and studies. That’s why I had put in promotion as a keyword, not under-promotion. In helpmates, promotions need to be distinguished of course, and we can put in the officer type in the parameter slot. Under-promotion would still need such a parameter because it’s inexact itself: the worst of all worlds. Even for directmates and studies of course some people consider knight promotion not to be an under-promotion at all, but I wouldn’t go that far myself. There are far too many keywords covering promotion, and at some time we should clean them up, but in the mean time I am open to considering another opinion if it is explained to me. Thank you. (2021-02-15)
more ...
comment
A.Buchanan: Please forgive me but I think “under-promotion” is only meaningful for directmates and studies. That’s why I had put in promotion as a keyword, not under-promotion. In helpmates, promotions need to be distinguished of course, and we can put in the officer type in the parameter slot. Under-promotion would still need such a parameter because it’s inexact itself: the worst of all worlds. Even for directmates and studies of course some people consider knight promotion not to be an under-promotion at all, but I wouldn’t go that far myself. There are far too many keywords covering promotion, and at some time we should clean them up, but in the mean time I am open to considering another opinion if it is explained to me. Thank you. (2021-02-15)
more ...
comment
Keywords: Promotion (s), Schlüssel = Eckzug, Promotion key (s), Corner mate, Selfblock, Model mate, Entblockung
Genre: h#
Computer test: Popeye v4.85
FEN: 8/8/1N6/3P4/8/1Pp5/BpP4n/NK5k
Input: A.Buchanan, 2021-02-15
Last update: A.Buchanan, 2021-02-18 more...
Genre: h#
Computer test: Popeye v4.85
FEN: 8/8/1N6/3P4/8/1Pp5/BpP4n/NK5k
Input: A.Buchanan, 2021-02-15
Last update: A.Buchanan, 2021-02-18 more...
1) 1. Se4! Lh8 2. Ta5+ Kxb4 3. Th5 La1 4. Sc3+ Kxc3 5. Th2 Lb2 6. Tc2+ dxc2#
2) 1. Kxa1! d2 2. Td4 d1=S,d1~ 3. Txd1 Kxb4 4. Sd3+ Kc3 5. Tf4 Kc2 6. Sb2 axb2#
Dies ist die optimierte Fassung, welche den vorherigen Einspänner ersetzt. Veröffentlicht in G 240, 30.04.21. Der Ko-Autor VB kam neu hinzu.
2) 1. Kxa1! d2 2. Td4 d1=S,d1~ 3. Txd1 Kxb4 4. Sd3+ Kc3 5. Tf4 Kc2 6. Sb2 axb2#
Dies ist die optimierte Fassung, welche den vorherigen Einspänner ersetzt. Veröffentlicht in G 240, 30.04.21. Der Ko-Autor VB kam neu hinzu.
Henrik Juel: 2 solutions is missing in the stipulation (2022-06-11)
Henrik Juel: C+ Popeye 4.61 (2022-06-11)
comment
Henrik Juel: C+ Popeye 4.61 (2022-06-11)
comment
Keywords: Batterietransformation (in 1), Maximummer, Switchback (Tl), corner to corner (l in 1), Discovered check, Pawn mate, Model mate, Schlüssel = Eckzug (in 2), Capture key (in 2)
Genre: Fairies
Computer test: Popeye Windows-64Bit v4.79 (4096 KB)
FEN: 8/8/8/5R2/kP3RP1/p2p4/P4N2/bK6
Input: Gunter Jordan, 2021-02-18
Last update: Gunter Jordan, 2022-06-11 more...
Genre: Fairies
Computer test: Popeye Windows-64Bit v4.79 (4096 KB)
FEN: 8/8/8/5R2/kP3RP1/p2p4/P4N2/bK6
Input: Gunter Jordan, 2021-02-18
Last update: Gunter Jordan, 2022-06-11 more...
39 - P1386911
Manfred Zucker
6626 Schach , p. 189, 06/1971
In memoriam Kurt Galke (8.7.1891-28.3.1971)
(3+3) C+
s#8
Längstzüger
Manfred Zucker
6626 Schach , p. 189, 06/1971
In memoriam Kurt Galke (8.7.1891-28.3.1971)
(3+3) C+
s#8
Längstzüger
1. h8=T+! Kb7 2. Dc7+ Ka6 3. Dc8+ Sb7 4. Th3 Kb6 5. Db8 a5 6. Ta3 Kc5 7. De5+ Kb6 8. Dc5+ Sxc5#
Ein reizender Sechssteiner mit T-Unterverwandlung, Damenopfer und Idealmatt
Ein reizender Sechssteiner mit T-Unterverwandlung, Damenopfer und Idealmatt
(MZ239)
Henrik Juel: Popeye 4.61 with 'opt non 0 1' found no flaws (2021-03-01)
Henrik Juel: Actually C+ Popeye 4.61 (1 hour) (2021-03-01)
comment
Henrik Juel: Popeye 4.61 with 'opt non 0 1' found no flaws (2021-03-01)
Henrik Juel: Actually C+ Popeye 4.61 (1 hour) (2021-03-01)
comment
Keywords: Miniature, Maximummer, Queen sacrifice, Ideal mate, under-promotion key (T), Schlüssel = Eckzug, Checking key
Genre: Fairies
FEN: k7/p6P/8/n7/K7/8/7Q/8
Input: Felber, Volker, 2021-03-01
Last update: Marcin Banaszek, 2021-03-07 more...
Genre: Fairies
FEN: k7/p6P/8/n7/K7/8/7Q/8
Input: Felber, Volker, 2021-03-01
Last update: Marcin Banaszek, 2021-03-07 more...
1. Lc5 Lh8 2. Ke3 Sg7 3. Kd4 Sf5#
Keywords: Indian, Schlüssel = Eckzug, corner to corner (L), Selfblock, discovered checkmate, Batteriematt diagonal, Battery creation, Illegal position (no wK)
Genre: h#
Computer test: Henrik Juel: C+ Popeye 4.61 (2021-04-10)
FEN: 8/8/4N3/3p4/2p1p3/3p4/3k4/B5b1
Input: Erich Bartel, 2021-04-10
Last update: A.Buchanan, 2023-12-11 more...
Genre: h#
Computer test: Henrik Juel: C+ Popeye 4.61 (2021-04-10)
FEN: 8/8/4N3/3p4/2p1p3/3p4/3k4/B5b1
Input: Erich Bartel, 2021-04-10
Last update: A.Buchanan, 2023-12-11 more...
1. La1 Kxa1 2. h8=D+ Kb1 3. Dh1+ Kb2 4. Dc1+ Kb3 5. Dc3#
1. ... a3 2. h8=T Kxa1 3. Kc3 d2 4. Th1+ d1=D 5. Txd1#
1. ... a3 2. h8=T Kxa1 3. Kc3 d2 4. Th1+ d1=D 5. Txd1#
Keywords: Exchange of Promotions (D-T), Miniature, Schlüssel = Eckzug, Flight giving sacrifice key, under-promotion (T), Promotion (D), corner to corner (D), Epaulettenmatt, Corner mate, Model mate (Gnaden-)
Genre: n#
Computer test: SCHRECKE: C+, Gustav 4.1d, Brute Force (2021-04-15)
FEN: 7B/7P/8/8/p7/3p4/p2K4/1k6
Input: Rainer Staudte, 2021-04-15
Last update: Alfred Pfeiffer, 2021-07-09 more...
Genre: n#
Computer test: SCHRECKE: C+, Gustav 4.1d, Brute Force (2021-04-15)
FEN: 7B/7P/8/8/p7/3p4/p2K4/1k6
Input: Rainer Staudte, 2021-04-15
Last update: Alfred Pfeiffer, 2021-07-09 more...
1. Dh1! droht 2. Db7 droht 3. Db4+ Kd3 4. De4#
2. ... Kd4 3. De4+ Kc5 4. Db4#
1. ... Kb3 2. Db1+ Kc4 3. Db4+ Kd3 4. De4#
2. ... Ka4 3. Db4#
2. ... Ka3 3. Lb4+ Ka4 4. Lc6#
1. ... Kb5 2. De1 ... 3. Db4+ Ka6 4. Db6#
2. ... Kd4 3. De4+ Kc5 4. Db4#
1. ... Kb3 2. Db1+ Kc4 3. Db4+ Kd3 4. De4#
2. ... Ka4 3. Db4#
2. ... Ka3 3. Lb4+ Ka4 4. Lc6#
1. ... Kb5 2. De1 ... 3. Db4+ Ka6 4. Db6#
1. Da8! droht 2. Tc6+ Kd5 3. Txc4+ Tb7#
1. ... gxf5 2. Td7+ Ke6 3. Da6+ Tb6#
1. ... Sf7 2. Tb6+ Sd6 3. Tb5+ Txb5#
1. ... Shxf5 2. Txf6+ Sd6 3. Te6+ Kxe6#
1. ... fxg5 2. Td7+ Kf6 3. Da6+ Tb6#
1. ... gxf5 2. Td7+ Ke6 3. Da6+ Tb6#
1. ... Sf7 2. Tb6+ Sd6 3. Tb5+ Txb5#
1. ... Shxf5 2. Txf6+ Sd6 3. Te6+ Kxe6#
1. ... fxg5 2. Td7+ Kf6 3. Da6+ Tb6#
Keywords: Motivinversion (simultan), Schlüssel = Eckzug, Battery play, Discovered check, Black correction, Batteriematt diagonal, discovered checkmate, Königsbatterie
Genre: s#
Computer test: Popeye 4.83
FEN: 1N5b/2B5/3R1ppn/p3kBP1/2p4N/2KpnQP1/rr1PR3/qb6
Input: Schwalbe, 2021-04-21
Last update: Gunter Jordan, 2024-01-19 more...
Genre: s#
Computer test: Popeye 4.83
FEN: 1N5b/2B5/3R1ppn/p3kBP1/2p4N/2KpnQP1/rr1PR3/qb6
Input: Schwalbe, 2021-04-21
Last update: Gunter Jordan, 2024-01-19 more...
44 - P1388876
Ulrich Voigt
18346v Die Schwalbe 305 10/2020
4. Preis
Abt. h#3,5-n
PR Fadil Abdurahmanovic
(2+8) C+
h#7
0.1.1...
Ulrich Voigt
18346v Die Schwalbe 305 10/2020
4. Preis
Abt. h#3,5-n
PR Fadil Abdurahmanovic
(2+8) C+
h#7
0.1.1...
1. ... La1 2. Db8 Kb2 3. La7 Kc3 4. Tb6 Kd4 5. Sd6 Ke5 6. Kh8 Kf6 7. Lg8 Kg6#
Wurde ursprünglich als h#6 mit wLa1 veröffentlicht (1.Db8 usw.).
Wurde ursprünglich als h#6 mit wLa1 veröffentlicht (1.Db8 usw.).
Keywords: Aristocrat, Minimal (L), Batteriematt diagonal, Battery creation, discovered checkmate, Corner mate, blocking of a piece, Liniensperrung, Check Protection, corner to corner (L), Schlüssel = Eckzug
Genre: h#
Computer test: H. Juel: popeye 4.61
FEN: r5kB/5n2/7r/3b4/1n6/8/5b1q/1K6
Input: Schwalbe, 2021-04-21
Last update: Olaf Jenkner, 2023-10-15 more...
Genre: h#
Computer test: H. Juel: popeye 4.61
FEN: r5kB/5n2/7r/3b4/1n6/8/5b1q/1K6
Input: Schwalbe, 2021-04-21
Last update: Olaf Jenkner, 2023-10-15 more...
1. Dh8! (Zugzwang)
1. ... Lxg2 2. Ta2 Lxf3#
1. ... Lxe2 2. g4+ Lxf3#
1. ... Lxg2 2. Ta2 Lxf3#
1. ... Lxe2 2. g4+ Lxf3#
Keywords: Schlüssel = Eckzug
Genre: s#
FEN: K7/B7/8/7Q/8/5B2/4R1Pb/5b1k
Reprints: 32 Straz Lidu 15/05/1949
Input: Mario Richter, 2021-07-13
Last update: Marcin Banaszek, 2021-07-15 more...
Genre: s#
FEN: K7/B7/8/7Q/8/5B2/4R1Pb/5b1k
Reprints: 32 Straz Lidu 15/05/1949
Input: Mario Richter, 2021-07-13
Last update: Marcin Banaszek, 2021-07-15 more...
1. ... Kd6 2. Sce8+ Kc5 3. Dd3! Kc6 4. Dc2+ Tc4 5. Da4+ Txa4#
1. Sa8! Kd6 2. De2! Kc5! 3. Dd3! Kc6 4. Dc2+ Kd6! 5. De4! Kc5 6. Sc7! Kd6 7. Sce8+ Kc5 8. Dd3! Kc6 9. Dc2+ Tc4 10. Da4+ Txa4#
1. Sa8! Kd6 2. De2! Kc5! 3. Dd3! Kc6 4. Dc2+ Kd6! 5. De4! Kc5 6. Sc7! Kd6 7. Sce8+ Kc5 8. Dd3! Kc6 9. Dc2+ Tc4 10. Da4+ Txa4#
Keywords: Minimal (t), Aristocrat, Miniature, Schlüssel = Eckzug, Rücknahme Schlüsselzug, Switchback (DSk), Model mate, Round Trip (Dk)
Genre: s#
FEN: 8/2N5/K4N2/2k5/1r2Q3/B7/8/8
Input: Rainer Staudte, 2021-08-04
Last update: Marcin Banaszek, 2021-08-06 more...
Genre: s#
FEN: 8/2N5/K4N2/2k5/1r2Q3/B7/8/8
Input: Rainer Staudte, 2021-08-04
Last update: Marcin Banaszek, 2021-08-06 more...
1. Dh8! droht 2. Dxe8+ Sd8 3. Dxd8#
1. ... Sbd6 2. Dh1+ Se4 3. Dxe4#
2. ... Sb7 3. Dxb7#
1. ... Sd8 2. Dh1+ Sb7 3. Dxb7#
2. ... Sc6 3. Dxc6#
1. ... Sbd6 2. Dh1+ Se4 3. Dxe4#
2. ... Sb7 3. Dxb7#
1. ... Sd8 2. Dh1+ Sb7 3. Dxb7#
2. ... Sc6 3. Dxc6#
1. Ta1! d5 2. Ke6 dxc4 3. Sf5#
1. ... d6 2. Ta4 d5 3. Sf5#
1. ... d6 2. Ta4 d5 3. Sf5#
Keywords: Schlüssel = Eckzug
Genre: 3#
FEN: 8/3p1K2/8/2p5/2Nkp3/3pN3/1P1p4/1R1B4
Input: Rainer Staudte, 2021-08-16
Last update: Gunter Jordan, 2024-02-08 more...
Genre: 3#
FEN: 8/3p1K2/8/2p5/2Nkp3/3pN3/1P1p4/1R1B4
Input: Rainer Staudte, 2021-08-16
Last update: Gunter Jordan, 2024-02-08 more...
49 - P1394489
Michael Schreckenbach
2148 Gaudium 239 31/03/2021
Lob
Abt. Drei- und Mehrzüger
PR Hans Gruber
(8+4)
#3
4.1...
Michael Schreckenbach
2148 Gaudium 239 31/03/2021
Lob
Abt. Drei- und Mehrzüger
PR Hans Gruber
(8+4)
#3
4.1...
* 1. ... Kxe4 2. Tb4+ Sc4 3. Txc4#
1) 1. Lb1! a5 2. Tc2 Ke4 3. Tc4#
2) 1. La8! a5 2. Tb7 Ke4 3. Tb4#
3) 1. Lh1! a5 2. Tg2 Ke4 3. Tg4#
4) 1. Lh7! a5 2. Tg6 Ke4 3. Tg4#
Für alle 4 Lösungsphasen gilt: 2.Td2? S~ 3.Td4#, aber 2. .. Sg4! [Autor]
1) 1. Lb1! a5 2. Tc2 Ke4 3. Tc4#
2) 1. La8! a5 2. Tb7 Ke4 3. Tb4#
3) 1. Lh1! a5 2. Tg2 Ke4 3. Tg4#
4) 1. Lh7! a5 2. Tg6 Ke4 3. Tg4#
Für alle 4 Lösungsphasen gilt: 2.Td2? S~ 3.Td4#, aber 2. .. Sg4! [Autor]
Keywords: discovered checkmate, Battery creation, Battery mates, double-check mate, Indian (4-fach), Läuferstern, Schlüssel = Eckzug (in 2+3)
Genre: 3#
Computer test: Popeye Windows-64Bit v4.85 (4096 KB)
FEN: 6R1/p7/4K3/7p/P3Bk1P/4n3/1R2P3/2B5
Input: Gunter Jordan, 2021-10-08
Last update: Gunter Jordan, 2023-07-09 more...
Genre: 3#
Computer test: Popeye Windows-64Bit v4.85 (4096 KB)
FEN: 6R1/p7/4K3/7p/P3Bk1P/4n3/1R2P3/2B5
Input: Gunter Jordan, 2021-10-08
Last update: Gunter Jordan, 2023-07-09 more...
50 - P1396641
Bosko Miloseski
C322 SuperProblem (Website) 04/10/2021
2. Lob
Abt. #7 - #n
PR Waleri Kirillow
(4+8)
#10
Bosko Miloseski
C322 SuperProblem (Website) 04/10/2021
2. Lob
Abt. #7 - #n
PR Waleri Kirillow
(4+8)
#10
1. Th1+ Kg7 2. Lc1! Kf6 3. Te1 Kf5 4. Te6 Kg4 5. Tf6 Kg3 6. Le2! Kg2 7. Tg6+ Kh1 8. Lf3+ Kh2 9. Lf4+ Kh3 10. Th6#
Anton Baumann: DL: 7. ... Kh2 8.Lf3,Lf4 Kh3 9.Lf4,Lf3 nebst 10.Th6#
sowie 6. ... Kh3 7.Tg6 Kh4 8.Lf3,Lf4 Kh3 9.Lf4,Lf3 10.Th6# (2022-05-25)
comment
sowie 6. ... Kh3 7.Tg6 Kh4 8.Lf3,Lf4 Kh3 9.Lf4,Lf3 10.Th6# (2022-05-25)
comment
Keywords: corner to corner (k), Checking key, Schlüssel = Eckzug
Genre: n#
FEN: 7k/8/8/8/1pB5/bp6/prpB4/KbR5
Input: Gunter Jordan, 2021-12-05
Last update: Gunter Jordan, 2021-12-05 more...
Genre: n#
FEN: 7k/8/8/8/1pB5/bp6/prpB4/KbR5
Input: Gunter Jordan, 2021-12-05
Last update: Gunter Jordan, 2021-12-05 more...
51 - P1398030
Zoltan Laborczi
SuperProblem (Website) 20/12/2021
7. Platz TT-263
(2+6) C+
h#7
0.1.1...
Zoltan Laborczi
SuperProblem (Website) 20/12/2021
7. Platz TT-263
(2+6) C+
h#7
0.1.1...
1. ... Kg7-h8 2. Sb4-a6 b3-b4 3. De3-e2 b4-b5 4. Tf3-c3 b5xa6 5. e4-e3 a6-a7 6. Lh7-c2 a7-a8=D 7. Kd4-d3 Da8-d5#
Yuri Bilokin: you can see 1.Sa6 b4 2.Qe2 b5 3.Rc3 bxa6 4.e3 a7 5.Bc2 a8=Q 6.Kd3 Qd5#
1.Sc2 b4 2.Ke5 b5 3.Kf4 b6 4.Qg1+ Kf6 5.Se3 b7 6.Qg4 b8=Q#
1.Sc2 b4 2.Ke5 b5 3.Kf4 b6 4.Qg1+ Kf6 5.Qg4 b7 6.Se3 b8=Q#
1.Sc2 b4 2.Ke5 b5 3.Kf4 Kf6 4.Qg1 b6 5.Se3 b7 6.Qg4 b8=Q# (2023-08-15)
comment
1.Sc2 b4 2.Ke5 b5 3.Kf4 b6 4.Qg1+ Kf6 5.Se3 b7 6.Qg4 b8=Q#
1.Sc2 b4 2.Ke5 b5 3.Kf4 b6 4.Qg1+ Kf6 5.Qg4 b7 6.Se3 b8=Q#
1.Sc2 b4 2.Ke5 b5 3.Kf4 Kf6 4.Qg1 b6 5.Se3 b7 6.Qg4 b8=Q# (2023-08-15)
comment
Keywords: Minimal (B), Schlüssel = Eckzug, Promotion (D), Model mate, Epaulettenmatt, Entblockung, Tempo Loss
Genre: h#
Computer test: Gustav 4.1c
FEN: 8/6Kb/8/8/1n1kp3/1P2qr2/8/8
Input: Marcin Banaszek, 2022-01-07
Last update: Gunter Jordan, 2022-01-07 more...
Genre: h#
Computer test: Gustav 4.1c
FEN: 8/6Kb/8/8/1n1kp3/1P2qr2/8/8
Input: Marcin Banaszek, 2022-01-07
Last update: Gunter Jordan, 2022-01-07 more...
1. ... La8! 2. Sc8 Kb7 3. Kb5 Kxc7 4. Ka6 Lxc6 5. Ka7 Lb5 6. Ka8 La6 7. Sa7 Lb7#
Keywords: Corner mate, Ideal mate, Klasinc theme (L-K, L-k, s-k), Miniature, Minimal (L), Interchange (L-k), Switchback (s), Round Trip (L-5), Schlüssel = Eckzug, Selfblock, Tempo Loss
Genre: h#
Computer test: Popeye Windows-64Bit v4.85 (4096 KB)
FEN: 8/nBp5/K1p5/8/2k5/8/8/8
Input: Gunter Jordan, 2022-04-09
Last update: Gunter Jordan, 2022-04-09 more...
Genre: h#
Computer test: Popeye Windows-64Bit v4.85 (4096 KB)
FEN: 8/nBp5/K1p5/8/2k5/8/8/8
Input: Gunter Jordan, 2022-04-09
Last update: Gunter Jordan, 2022-04-09 more...
1. Dh1! (Z) f3 2. Dxh8 f2 3. Dxe5#
1. ... Lf6 2. Dc6 ... 3. Dc3#
2. ... e4 3. Dxf6#
1. ... Lg7 2. Db7 ... 3. Db2#
2. ... e4 3. Dxg7#
1. ... Lf6 2. Dc6 ... 3. Dc3#
2. ... e4 3. Dxf6#
1. ... Lg7 2. Db7 ... 3. Db2#
2. ... e4 3. Dxg7#
Keywords: corner to corner (D), Corner mate, Line opening, Changed mates, Model mate (Gnaden-), Schlüssel = Eckzug, Minimal (D)
Genre: 3#
Computer test: Gustav 4.1 a
FEN: 7b/8/8/4p3/5p2/8/p1p5/kbK3Q1
Input: Gunter Jordan, 2022-05-24
Last update: Gunter Jordan, 2023-10-21 more...
Genre: 3#
Computer test: Gustav 4.1 a
FEN: 7b/8/8/4p3/5p2/8/p1p5/kbK3Q1
Input: Gunter Jordan, 2022-05-24
Last update: Gunter Jordan, 2023-10-21 more...
1. Lh8 Lg5 2. Kg7 Sf6=
in 'Tabor' als "Pomocný samopat" (Weiß zieht an, Schwarz setzt patt) gespiegelt/farbvertauscht (FEN=8/8/8/8/3nB3/6P1/8/3bk1K1)
SCHRECKE: C+, popeye 4.87 (2022-06-15)
comment
SCHRECKE: C+, popeye 4.87 (2022-06-15)
comment
1. Da1! (Zugzwang)
1. ... Lf2 2. Dg7#
1. ... La5,Lb4,Lc3,Ld2 2. Dg1#
1. ... f2 2. Dg7#
1. ... Kf2 2. Dxe1#
1. ... Kg4 2. Dg7#
1. ... Lf2 2. Dg7#
1. ... La5,Lb4,Lc3,Ld2 2. Dg1#
1. ... f2 2. Dg7#
1. ... Kf2 2. Dxe1#
1. ... Kg4 2. Dg7#
zum Autor heißt es in 'Jemtlands Tidning': W. Jensen, Köpenhamn
SCHRECKE: C+, popeye 4.87 (2022-06-30)
comment
SCHRECKE: C+, popeye 4.87 (2022-06-30)
comment
Keywords: Schlüssel = Eckzug, Zugzwang-Goal
Genre: 2#
Computer test: popeye 4.87
FEN: 8/8/2p5/2p2P1p/2K2p1N/5pk1/1Q6/4b2R
Input: Mario Richter, 2022-06-30
Last update: Dieter Berlin, 2022-07-02 more...
Genre: 2#
Computer test: popeye 4.87
FEN: 8/8/2p5/2p2P1p/2K2p1N/5pk1/1Q6/4b2R
Input: Mario Richter, 2022-06-30
Last update: Dieter Berlin, 2022-07-02 more...
1. Dh1! droht 2. Da8#
1. ... Dxh1 2. Txh1#
1. ... Dh2 2. Dxh2#
1. ... Dh7 2. Dxh7#
1. ... Dh6+ 2. Dxh6#
1. ... Dh5 2. Dxh5#
1. ... Dh4+ 2. Dxh4#
1. ... g3 2. Dxh3#
1. ... Dxh1 2. Txh1#
1. ... Dh2 2. Dxh2#
1. ... Dh7 2. Dxh7#
1. ... Dh6+ 2. Dxh6#
1. ... Dh5 2. Dxh5#
1. ... Dh4+ 2. Dxh4#
1. ... g3 2. Dxh3#
1. Th1! Se1+ 2. Kf1 ... 3. Th8#
1. ... Se3+ 2. Kg1 ... 3. Th8#
1. ... f3+ 2. Kg3 ... 3. Th8#
1. ... Se3+ 2. Kg1 ... 3. Th8#
1. ... f3+ 2. Kg3 ... 3. Th8#
1. La1! Kc4 2. Txb5 Kb3 3. Tc5 Ka3 4. Tc3#
Keywords: Zugzwang-Goal, Schlüssel = Eckzug
Genre: n#
Computer test: HJ: Popeye 4.61
FEN: 8/3p4/1R1P1B2/Kpk5/1N6/8/8/8
Reprints: 44 Das Schachproblem , p. 43, 1937
Input: Dieter Berlin, 2022-07-14
Last update: Rainer Staudte, 2022-07-14 more...
Genre: n#
Computer test: HJ: Popeye 4.61
FEN: 8/3p4/1R1P1B2/Kpk5/1N6/8/8/8
Reprints: 44 Das Schachproblem , p. 43, 1937
Input: Dieter Berlin, 2022-07-14
Last update: Rainer Staudte, 2022-07-14 more...
59 - P1404944
Stephan Dietrich
18937 Die Schwalbe 314 04/2022
Norbert Geissler zum
64. Geburtstag gewidmet
(5+3)
ser-s#13
Alphabetschach
Breton adverse
Stephan Dietrich
18937 Die Schwalbe 314 04/2022
Norbert Geissler zum
64. Geburtstag gewidmet
(5+3)
ser-s#13
Alphabetschach
Breton adverse
1. a8=L 2. b8=L 3. Lf3 4. La7 5. Lg1 6. d8=S 7. Se6 8. Sg5 9. e8=S 10. Sf6 11. Lg4 12. Sh5 13. Ld4 Sxg4 [-wLd4]#
Keywords: Seriesmover, Schlüssel = Eckzug, under-promotion key, under-promotion (LS), under-promotion B/S, konsekutive Umwandlungen 4 (LLSS), Corner mate, Selfblock, Ideal mate
Genre: Fairies
FEN: 7k/PP1PP3/7K/4n3/7n/8/8/8
Input: Stefan Höning, 2022-10-07
Last update: Gunter Jordan, 2023-03-11 more...
Genre: Fairies
FEN: 7k/PP1PP3/7K/4n3/7n/8/8/8
Input: Stefan Höning, 2022-10-07
Last update: Gunter Jordan, 2023-03-11 more...
1. La1! a4 2. Tc3 Kd4 3. Sb2 Kxc3 4. Se2#
1. ... axb4 2. Kg6 bxa3 3. Kf5 a2 4. Sf1#
1. ... axb4 2. Kg6 bxa3 3. Kf5 a2 4. Sf1#
Keywords: Indian, Rook sacrifice, Drag-in sacrifice, Schlüssel = Eckzug
Genre: n#
Computer test: SCHRECKE: Gustav 4.2b
FEN: 8/7K/2p2B2/p1P5/1P2PP2/PR1Nk1N1/3p4/3B4
Reprints: 294 Versunkene Schätze , p. 127, 1998
Input: Dieter Berlin, 2022-10-13
Last update: Dieter Berlin, 2022-10-13 more...
Genre: n#
Computer test: SCHRECKE: Gustav 4.2b
FEN: 8/7K/2p2B2/p1P5/1P2PP2/PR1Nk1N1/3p4/3B4
Reprints: 294 Versunkene Schätze , p. 127, 1998
Input: Dieter Berlin, 2022-10-13
Last update: Dieter Berlin, 2022-10-13 more...
1. Dh8! droht 2. Sxd6#
1. ... Sxe4 2. Dd8#
1. ... Sf5 2. Sc5#
1. ... Sxc4 2. Sc3#
1. ... Kd3 2. Sc5#
1. ... Te1 2. Td2#
1. ... Sxe4 2. Dd8#
1. ... Sf5 2. Sc5#
1. ... Sxc4 2. Sc3#
1. ... Kd3 2. Sc5#
1. ... Te1 2. Td2#
Keywords: pin-mate, discovered checkmate, Deckungsverlust, Batterienutzung, mehrfache, Schlüssel = Eckzug
Genre: 2#
Computer test: Juel: Popeye 4.61
FEN: n2Q4/4pP1B/3n4/4p3/1KPkNR2/8/1R3P2/3r4
Reprints: 160 Problemschach-Jahrbuch 1992 D , p. 80, 1992
Input: Dieter Berlin, 2022-11-11
Last update: Dieter Berlin, 2022-11-11 more...
Genre: 2#
Computer test: Juel: Popeye 4.61
FEN: n2Q4/4pP1B/3n4/4p3/1KPkNR2/8/1R3P2/3r4
Reprints: 160 Problemschach-Jahrbuch 1992 D , p. 80, 1992
Input: Dieter Berlin, 2022-11-11
Last update: Dieter Berlin, 2022-11-11 more...
1. Sh8! Kxe5 2. Sf7+ Kf4 3. Lxf2 Sc4 4. Th4+ Kf3 5. Se5+ Sxe5 6. Th3+ Kf4 7. Le3#
Keywords: Flight-giving key, Switchback (S), Knight sacrifice, Blocknutzung, Pure mate, Model mate, Schlüssel = Eckzug, Rücknahme Schlüsselzug
Genre: n#
Computer test: SCHRECKE: Gustav 4.2b
FEN: 8/5N2/4pN1p/n3Pp2/1p3k1B/1p5R/qp3p2/2n2K2
Reprints: 1760 Beispiele zur Ideengeschichte des Schachproblems , p. 356, 1982
Input: Dieter Berlin, 2022-11-24
Last update: Dieter Berlin, 2022-11-24 more...
Genre: n#
Computer test: SCHRECKE: Gustav 4.2b
FEN: 8/5N2/4pN1p/n3Pp2/1p3k1B/1p5R/qp3p2/2n2K2
Reprints: 1760 Beispiele zur Ideengeschichte des Schachproblems , p. 356, 1982
Input: Dieter Berlin, 2022-11-24
Last update: Dieter Berlin, 2022-11-24 more...
63 - P1406711
P. A. Orlimont
11783 Deutsches Wochenschach 23/11/1913
C. Kockelkorn gewidmet
zum 70. Geburtstag
(8+7) C+
#5
P. A. Orlimont
11783 Deutsches Wochenschach 23/11/1913
C. Kockelkorn gewidmet
zum 70. Geburtstag
(8+7) C+
#5
1. Th1! Sf1 2. Tg2 Sxd2 3. Ta1 Sb3 4. Tb2 axb2 5. a3#
Keywords: ambush, Rook sacrifice, Pawn mate, Schlüssel = Eckzug, corner to corner (T), Model mate
Genre: n#
Computer test: Juel: Popeye 4.61
FEN: 6KR/6R1/1p3B2/bPp5/1kp5/p1N3n1/P2P4/8
Reprints: 752 Beispiele zur Ideengeschichte des Schachproblems , p. 159, 1982
Input: Dieter Berlin, 2022-12-14
Last update: Dieter Berlin, 2022-12-14 more...
Genre: n#
Computer test: Juel: Popeye 4.61
FEN: 6KR/6R1/1p3B2/bPp5/1kp5/p1N3n1/P2P4/8
Reprints: 752 Beispiele zur Ideengeschichte des Schachproblems , p. 159, 1982
Input: Dieter Berlin, 2022-12-14
Last update: Dieter Berlin, 2022-12-14 more...
1. Dh8! Kb1 2. Dxh3 Ka1 3. Dh8 Kb1 4. Dh1#
1. ... h2 2. Lc2 h1=D 3. Dxh1+ Kxa2 4. Da8#
3. ... b1=D 4. Dxb1#
2. ... h1=S 3. Dxh1+ Kxa2 4. Da8#
1. ... h2 2. Lc2 h1=D 3. Dxh1+ Kxa2 4. Da8#
3. ... b1=D 4. Dxb1#
2. ... h1=S 3. Dxh1+ Kxa2 4. Da8#
Keywords: Miniature, Schlüssel = Eckzug, corner to corner (D), Round Trip (D-3), Promotion (d), under-promotion (s)
Genre: n#
FEN: Q7/8/8/8/8/1B2K2p/Pp6/k7
Input: Rainer Staudte, 2022-12-29
Last update: Gunter Jordan, 2022-12-29 more...
Genre: n#
FEN: Q7/8/8/8/8/1B2K2p/Pp6/k7
Input: Rainer Staudte, 2022-12-29
Last update: Gunter Jordan, 2022-12-29 more...
1. a1=L Kg6 2. Ka2 Kf5 3. Lb2 Ke4 4. La3 Kd3 5. d1=T Kc2 6. Ta1 Ld5#
Yuri Bilokin: possibly wBg2-a4 8/7K/8/8/B7/8/pk1p4/8 (2+3) h#6
1.a1=B Kg6 2.Ka2 Kf5 3.Bb2 Ke4 4.Ba3 Kd3 5.d1=R+ Kc2 6.Ra1 Bb3# (IM)
Place exchange (bB/bK)
Promotion (rb)
Ideal mate (2023-01-22)
Henrik Juel: This is no ideal mate, as b3 is guarded both by Kc2 and Ld5 (2023-01-22)
Gerald Ettl: Hallo Henrik, bezüglich des Idealmatts: in seiner Version steht der wL zum Schluss auf b3. (2023-01-22)
comment
1.a1=B Kg6 2.Ka2 Kf5 3.Bb2 Ke4 4.Ba3 Kd3 5.d1=R+ Kc2 6.Ra1 Bb3# (IM)
Place exchange (bB/bK)
Promotion (rb)
Ideal mate (2023-01-22)
Henrik Juel: This is no ideal mate, as b3 is guarded both by Kc2 and Ld5 (2023-01-22)
Gerald Ettl: Hallo Henrik, bezüglich des Idealmatts: in seiner Version steht der wL zum Schluss auf b3. (2023-01-22)
comment
Keywords: konsekutive Umwandlungen 2 (lt), Minimal (L), Schlüssel = Eckzug, Selfblock, under-promotion (tl), under-promotion key
Genre: h#
Computer test: Gustav 4.1 i
FEN: 8/7K/8/8/8/8/pk1p2B1/8
Input: Gunter Jordan, 2023-01-19
Last update: Gunter Jordan, 2023-01-19 more...
Genre: h#
Computer test: Gustav 4.1 i
FEN: 8/7K/8/8/8/8/pk1p2B1/8
Input: Gunter Jordan, 2023-01-19
Last update: Gunter Jordan, 2023-01-19 more...
66 - P1407400
Oswaldo Faria
Caetano Belliboni
2836 Thema Danicum 10/1984
(3+3) C+
s#5
Längstzüger
Circe
Oswaldo Faria
Caetano Belliboni
2836 Thema Danicum 10/1984
(3+3) C+
s#5
Längstzüger
Circe
1. Th1! Th7 2. Txh7[+sTa8]+ Kg8 3. Ta7 Tf8 4. Ta8 Txa8[+wTh1] 5. Tb1 Txa2#
Keywords: Circe, Maximummer, Switchback, Schlüssel = Eckzug, Opferbahnung, corner to corner (T), Round Trip (T-5), Selfblock, Rücknahme Schlüsselzug, Pinning, Corner mate, Model mate
Genre: Fairies
Computer test: Popeye Windows-32Bit v4.79
FEN: 7k/8/8/1p6/8/8/P6r/KR6
Input: HBae, 2023-01-22
Last update: Gunter Jordan, 2023-01-22 more...
Genre: Fairies
Computer test: Popeye Windows-32Bit v4.79
FEN: 7k/8/8/1p6/8/8/P6r/KR6
Input: HBae, 2023-01-22
Last update: Gunter Jordan, 2023-01-22 more...
1. h8=D! Ka2 2. Dg8+ Ka1 3. b4#
1. ... Sb5 2. Da8+ Sa3 3. Dxa3#
2. ... Sa7 3. Dxa7#
1. ... Sc6 2. Da8+ Sa5 3. Dxa5#
2. ... Sa7 3. Dxa7#
1. ... Sc8 2. Dg8 ... 3. b4#
1. ... Sb5 2. Da8+ Sa3 3. Dxa3#
2. ... Sa7 3. Dxa7#
1. ... Sc6 2. Da8+ Sa5 3. Dxa5#
2. ... Sa7 3. Dxa7#
1. ... Sc8 2. Dg8 ... 3. b4#
Keywords: Minimal (s), Miniature, Promotion key, Promotion (D), Schlüssel = Eckzug, Corner mate, discovered checkmate, Batteriematt diagonal, corner to corner (D)
Genre: 3#
FEN: 8/n6P/3P4/8/8/2B5/1P6/k1K5
Input: Rainer Staudte, 2023-03-15
Last update: Gunter Jordan, 2023-03-16 more...
Genre: 3#
FEN: 8/n6P/3P4/8/8/2B5/1P6/k1K5
Input: Rainer Staudte, 2023-03-15
Last update: Gunter Jordan, 2023-03-16 more...
1. Da1
Keywords: Aristocrat, Minimal (s), Schlüssel = Eckzug
Genre: 2#
FEN: 5N2/8/8/5n1k/Q4K2/8/8/8
Reprints: 18 The Problemist 28-11, p. 450, 09/2022
Input: Felber, Volker, 2023-03-15
Last update: Gunter Jordan, 2023-03-16 more...
Genre: 2#
FEN: 5N2/8/8/5n1k/Q4K2/8/8/8
Reprints: 18 The Problemist 28-11, p. 450, 09/2022
Input: Felber, Volker, 2023-03-15
Last update: Gunter Jordan, 2023-03-16 more...
1. Lh8! (Zugzwang)
1. ... Kxe4 2. Tf6 Kxd4 3. Tf4#
1. ... Kxe4 2. Tf6 Kxd4 3. Tf4#
1. Dh8! Kxc4 2. De5 Kd3 3. Dd4#
1. ... Ke4 2. De5+ Kd3 3. Dd4#
Cook: 2. Se3 ... 3. Dd4#
1. ... Ke4 2. De5+ Kd3 3. Dd4#
Cook: 2. Se3 ... 3. Dd4#
Keywords: Flight taking, Schlüssel = Eckzug
Genre: 3#
FEN: 8/8/8/8/2N5/2Pk2K1/6PQ/3B4
Input: Rainer Staudte, 2023-03-29
Last update: Gunter Jordan, 2023-03-29 more...
Genre: 3#
FEN: 8/8/8/8/2N5/2Pk2K1/6PQ/3B4
Input: Rainer Staudte, 2023-03-29
Last update: Gunter Jordan, 2023-03-29 more...
1. a8=L 2. Lb7 3. La6 4. c7 5. c8=S 6. Sd6 7. d8=D 8. Df6 9. Sf5 10. g6 11. g7 12. g8=T 13. Tg1 14. Tc1 15. Ke1 16. Dd1 17. Le2 18. d2-d3 19. Kd2 20. Le1 21. Se3+ dxe3#
paul: Cooked with Jacobi: 1.d3 2.Kd2 3.Be1 4.Qd1 5.g6 6.c7 7.g7 8.a8=R 9.c8=B 10.d8=S 11.Ra1 12.Rc1 13.Bg4 14.Be2 15.Se6 16.g8=Q 17.Qg7 18.Qf6 19.Sg7 20.Sf5 21.Se3+ dxe3#
I used this code:
forsyth 8/P2P4/2P5/2bk2PQ/3p4/2P5/2PPKB2/8
stip ser-dia 21
pieces white Kd2 Qd1f6 Rc1 Be1e2 Se3 Pc2c3d3 black Kd5 Bc5 Pd4 (2023-05-09)
comment
I used this code:
forsyth 8/P2P4/2P5/2bk2PQ/3p4/2P5/2PPKB2/8
stip ser-dia 21
pieces white Kd2 Qd1f6 Rc1 Be1e2 Se3 Pc2c3d3 black Kd5 Bc5 Pd4 (2023-05-09)
comment
Keywords: Allumwandlung, Antiphönix, Pawn mate, Entblockung, Remote selfblock, Skittles setup (im Mattbild), konsekutive Umwandlungen 4 (LSDT), Liniensperrung, Model mate, Check Protection, Schlüssel = Eckzug, Selfblock, Seriesmover, Promotion (D), under-promotion (TLS), under-promotion key
Genre: Fairies
FEN: 8/P2P4/2P5/2bk2PQ/3p4/2P5/2PPKB2/8
Input: Gunter Jordan, 2023-04-05
Last update: Gunter Jordan, 2023-04-05 more...
Genre: Fairies
FEN: 8/P2P4/2P5/2bk2PQ/3p4/2P5/2PPKB2/8
Input: Gunter Jordan, 2023-04-05
Last update: Gunter Jordan, 2023-04-05 more...
1. ... Th1 2. Tg1 Th2+ 3. g2 Th1 4. Sg3 Th2 5. Tf1 Th1 6. g1=S Th2#
Yuri Bilokin: you can see h#5 1.Qe2 Rh1 2.Se3 Rh2 3.Kf1 Rxg2 4.f2 Rh2 5.Sg2 Rh1#
get rid of Exchange e1 e3 1K6/6r1/1n6/8/7p/4bppP/5krR/4qn2 (3+10) (2023-04-19)
comment
get rid of Exchange e1 e3 1K6/6r1/1n6/8/7p/4bppP/5krR/4qn2 (3+10) (2023-04-19)
comment
Keywords: under-promotion (s), Schlüssel = Eckzug, Switchback (T), Rücknahme Schlüsselzug, Selfblock, changed blocks, Interchange (t-s-b zyklisch)
Genre: h#
FEN: 1K6/6r1/1n6/8/7p/4qppP/5krR/4bn2
Input: Gunter Jordan, 2023-04-15
Last update: Gunter Jordan, 2023-07-24 more...
Genre: h#
FEN: 1K6/6r1/1n6/8/7p/4qppP/5krR/4bn2
Input: Gunter Jordan, 2023-04-15
Last update: Gunter Jordan, 2023-07-24 more...
1. Da8! Lb6 2. Lh2 Ld8 3. Dxd8 Kxb2 4. Le5+ Kxa3 5. Da5#
Keywords: Zugzwang-Goal, Grab, corner to corner (D), Schlüssel = Eckzug
Genre: n#
Computer test: SCHRECKE: Gustav 4.2c
FEN: 8/b3p3/4P3/2p1B1p1/2P3Pp/Np1Pp2P/pP1pP3/k2K3Q
Reprints: 204 Problemschach-Jahrbuch 1993 D , p. 96, 1993
Input: Dieter Berlin, 2023-05-09
Last update: Gunter Jordan, 2023-05-09 more...
Genre: n#
Computer test: SCHRECKE: Gustav 4.2c
FEN: 8/b3p3/4P3/2p1B1p1/2P3Pp/Np1Pp2P/pP1pP3/k2K3Q
Reprints: 204 Problemschach-Jahrbuch 1993 D , p. 96, 1993
Input: Dieter Berlin, 2023-05-09
Last update: Gunter Jordan, 2023-05-09 more...
74 - P1409568
Eberhard Schulze
Die Schwalbe 01/06/2011
Lob Informalturnier 2011
(8+6) C+
h#2
b) wKd8->a7
Eberhard Schulze
Die Schwalbe 01/06/2011
Lob Informalturnier 2011
(8+6) C+
h#2
b) wKd8->a7
a) 1. Dh1 Sc6+ 2. Kxe4 Dxh1#
b) 1. Lg5 Txc4+ 2. Kxe5 Dxg5#
b) 1. Lg5 Txc4+ 2. Kxe5 Dxg5#
Keywords: Schlüssel = Eckzug (in a), Twin
Genre: h#
Computer test: Gustav 4.2
FEN: 2BK4/8/5P2/4N3/2pkN1pQ/1pR1b1P1/8/3q4
Input: Eberhard Schulze, 2023-05-12
Last update: Gunter Jordan, 2023-05-12 more...
Genre: h#
Computer test: Gustav 4.2
FEN: 2BK4/8/5P2/4N3/2pkN1pQ/1pR1b1P1/8/3q4
Input: Eberhard Schulze, 2023-05-12
Last update: Gunter Jordan, 2023-05-12 more...
1. Da8! (Zugzwang)
1. ... Kg4 2. Dg2#
1. ... Kg6 2. Dg8#
1. ... Ld1,Le2,Lf3,Lg4 2. Dg8#
1. ... Le8,Lf7,Lg6 2. Dg2#
1. ... Kg4 2. Dg2#
1. ... Kg6 2. Dg8#
1. ... Ld1,Le2,Lf3,Lg4 2. Dg8#
1. ... Le8,Lf7,Lg6 2. Dg2#
beim Nachdruck in den 'Straßburger neuesten Nachrichten' falsch wLh5; außerdem war dem Blatt der "Verfasser unbekannt" - eine Bitte an die Leserschaft, entsprechende Informationen berreitzustellen, blieb erfolglos.
Henrik Juel: C+ Popeye 4.61 (2023-05-19)
comment
Henrik Juel: C+ Popeye 4.61 (2023-05-19)
comment
1. Da8! droht 2. Sc6#
1. ... Sb4 2. f4#
1. ... Lxd4 2. Sxd3#
1. ... Kxd4 2. Da1#
1. ... Le8 2. Sf3#
1. ... f5 2. Dh8#
1. ... exd5 2. Dxd5#
1. ... Sb4 2. f4#
1. ... Lxd4 2. Sxd3#
1. ... Kxd4 2. Da1#
1. ... Le8 2. Sf3#
1. ... f5 2. Dh8#
1. ... exd5 2. Dxd5#
Henrik Juel: C+ Popeye 4.61 alxo (2023-06-26)
udo.de: steingetreu vorweggenommen durch D.M. Howard, Problem Observer, 3, Mai 2000 (2023-06-27)
comment
udo.de: steingetreu vorweggenommen durch D.M. Howard, Problem Observer, 3, Mai 2000 (2023-06-27)
comment
Keywords: Block, corner to corner (D), Square vacation, Line opening, Schlüssel = Eckzug
Genre: 2#
Computer test: Gustav 4.1 a
FEN: 8/2p5/2Qppp2/2bBk2b/3NP3/3n2K1/5P2/2NR4
Input: Gunter Jordan, 2023-06-26
Last update: Rainer Staudte, 2023-06-26 more...
Genre: 2#
Computer test: Gustav 4.1 a
FEN: 8/2p5/2Qppp2/2bBk2b/3NP3/3n2K1/5P2/2NR4
Input: Gunter Jordan, 2023-06-26
Last update: Rainer Staudte, 2023-06-26 more...
a) 1. Ta1? droht 2. b7#
1. ... Lf3 2. Lb8#
1. ... La4!
1. Lb8! droht 2. b7#
1. ... Lf3 2. Ta1#
b) 1. Lb8? droht 2. b7#
1. ... Lxb6!
1. Ta1! Le1,L~ 2. b7#
1. ... Lxb6 2. Lxb6#
1. ... Lf3 2. Lb8#
1. ... La4!
1. Lb8! droht 2. b7#
1. ... Lf3 2. Ta1#
b) 1. Lb8? droht 2. b7#
1. ... Lxb6!
1. Ta1! Le1,L~ 2. b7#
1. ... Lxb6 2. Lxb6#
Keywords: Reversal 1, Minimal (l), Miniature, Schlüssel = Eckzug (in b)
Genre: 2#
FEN: k1K5/B7/1P2P3/8/8/8/8/2Rb4
Input: Rainer Staudte, 2023-06-29
Last update: Gunter Jordan, 2023-06-29 more...
Genre: 2#
FEN: k1K5/B7/1P2P3/8/8/8/8/2Rb4
Input: Rainer Staudte, 2023-06-29
Last update: Gunter Jordan, 2023-06-29 more...
1. Ta1! (Zugzwang)
1. ... a6 2. La2 Kxa4 3. Lc4#
1. ... a6 2. La2 Kxa4 3. Lc4#
Keywords: Schlüssel = Eckzug, Indian, Batteriematt vertikal, discovered checkmate, Knight sacrifice
Genre: 3#
FEN: 8/pK6/8/pk1B1p2/N4P2/R1P5/8/8
Reprints: 7 St. Catharines Constitutional 06/04/1865
Input: Mario Richter, 2023-06-29
Last update: Gunter Jordan, 2023-06-29 more...
Genre: 3#
FEN: 8/pK6/8/pk1B1p2/N4P2/R1P5/8/8
Reprints: 7 St. Catharines Constitutional 06/04/1865
Input: Mario Richter, 2023-06-29
Last update: Gunter Jordan, 2023-06-29 more...
1. Ta1! Kb5 2. Kc7 Ka4,K~ 3. Lc4#
1. ... Kb7 2. Ld5+ Kb8 3. Ta8#
1. ... Kb7 2. Ld5+ Kb8 3. Ta8#
1. La8! h1=D 2. Txh1 Kb2 3. Db4# 2. ... c3 3. Dxc1#
1. ... gxh3 2. Lh1 Kb2 3. Db4# 2. ... c3 3. Tb4#
1. ... c3 2. Dh1 Kb2 3. Db7# 2. ... gxh3 3. Tb4#
1. ... gxh3 2. Lh1 Kb2 3. Db4# 2. ... c3 3. Tb4#
1. ... c3 2. Dh1 Kb2 3. Db7# 2. ... gxh3 3. Tb4#
Keywords: corner to corner (L), Switchback (L), Epaulettenmatt, Line opening, white Bristol, Schlüssel = Eckzug
Genre: 3#
Computer test: SCHRECKE: popeye 4.87
FEN: 5B2/8/p4P1P/P6p/P1p3pR/P5PR/p1p2K1p/rkb1Q2B
Reprints: 672 Problemschach-Jahrbuch 1993 D , p. 340, 1994
Input: Dieter Berlin, 2023-07-11
Last update: Gunter Jordan, 2023-07-11 more...
Genre: 3#
Computer test: SCHRECKE: popeye 4.87
FEN: 5B2/8/p4P1P/P6p/P1p3pR/P5PR/p1p2K1p/rkb1Q2B
Reprints: 672 Problemschach-Jahrbuch 1993 D , p. 340, 1994
Input: Dieter Berlin, 2023-07-11
Last update: Gunter Jordan, 2023-07-11 more...
1. Da1! (Zugzwang)
1. ... Kf5,Kd5 2. Da6 Ke4 3. De6#
1. ... Ke3 2. Dd1 ... 3. Dd3#
1. ... Kf5,Kd5 2. Da6 Ke4 3. De6#
1. ... Ke3 2. Dd1 ... 3. Dd3#
1. Da1! fxg2! 2. Da5+ Kd4 3. Dd2+ Ke5 4. Tc5+ Kf6 5. Dg5#
sBb3 = Wiesel
sBb3 = Wiesel
Keywords: Asymmetrical solution, Flight taking, Schlüssel = Eckzug, Symbol problem (Kreuz), Symmetrical position
Genre: n#
Computer test: Gustav 4.1 a
FEN: 8/1K3p2/2R1p3/3k4/2p1p3/1p3p2/6B1/7Q
Input: Gunter Jordan, 2023-07-16
Last update: Gunter Jordan, 2023-07-16 more...
Genre: n#
Computer test: Gustav 4.1 a
FEN: 8/1K3p2/2R1p3/3k4/2p1p3/1p3p2/6B1/7Q
Input: Gunter Jordan, 2023-07-16
Last update: Gunter Jordan, 2023-07-16 more...
1. Ta1! droht 2. Ta2+ Kh1 3. Kg3 c4 4. Txa7 ... 5. Ta1#
1. ... Sf6! 2. Ta2+ Kh1 3. Kg3 ... 4. Ta1#
3. ... Sh5+ 4. Kxh3 Sf4+ 5. Kg3 Sh5+ 6. Kf3 ... 7. Ta1+ Kh2 8. Tg2+ Kh3 9. Th1#
6. ... Sf4 7. Ta1+ Kh2 8. Tgg1 ... 9. Th1#
8. ... g4+ 9. Txg4 ... 10. Tgg1 ... 11. Th1#
9. ... Ld7 10. Txf4 ... 11. Th4+ Lh3 12. Txh3+ Kxh3 13. Th1#
1. ... Sf6! 2. Ta2+ Kh1 3. Kg3 ... 4. Ta1#
3. ... Sh5+ 4. Kxh3 Sf4+ 5. Kg3 Sh5+ 6. Kf3 ... 7. Ta1+ Kh2 8. Tg2+ Kh3 9. Th1#
6. ... Sf4 7. Ta1+ Kh2 8. Tgg1 ... 9. Th1#
8. ... g4+ 9. Txg4 ... 10. Tgg1 ... 11. Th1#
9. ... Ld7 10. Txf4 ... 11. Th4+ Lh3 12. Txh3+ Kxh3 13. Th1#
Keywords: Schlüssel = Eckzug, Opferminimal
FEN: 4br2/b4p1n/3p3p/1ppp2p1/6R1/5K1p/7k/6R1
Input: Gunter Jordan, 2023-07-25
Last update: Gunter Jordan, 2023-07-25 more...
FEN: 4br2/b4p1n/3p3p/1ppp2p1/6R1/5K1p/7k/6R1
Input: Gunter Jordan, 2023-07-25
Last update: Gunter Jordan, 2023-07-25 more...
a) 1. Db8! droht 2. Db3#
1. ... Kxe3 2. Dg3#
1. ... Td6 2. Sc1#
b) 1. Dh8! droht 2. Dh3#
1. ... Kxd3 2. Dc3#
1. ... Sf4 2. Sf1#
1. ... Kxe3 2. Dg3#
1. ... Td6 2. Sc1#
b) 1. Dh8! droht 2. Dh3#
1. ... Kxd3 2. Dc3#
1. ... Sf4 2. Sf1#
Keywords: Schlüssel = Eckzug (in b), Twin
Genre: 2#
Computer test: a)+b): C+, popeye 4.87
FEN: 3Q4/3RRp2/2p1r3/2pn4/2P3B1/3kP3/1K1NN3/4B3
Input: Rainer Staudte, 2023-07-27
Last update: A.Buchanan, 2023-07-27 more...
Genre: 2#
Computer test: a)+b): C+, popeye 4.87
FEN: 3Q4/3RRp2/2p1r3/2pn4/2P3B1/3kP3/1K1NN3/4B3
Input: Rainer Staudte, 2023-07-27
Last update: A.Buchanan, 2023-07-27 more...
85 - P1411397
Boris Shorokhov
1. Preis
Abt. h#3,5-n
Andrej Seliwanow 55-JT
PR Andrej Seliwanow
(6+14)
h#5
Boris Shorokhov
1. Preis
Abt. h#3,5-n
Andrej Seliwanow 55-JT
PR Andrej Seliwanow
(6+14)
h#5
1. Ta1 Kg7! (K~?) 2. Ta8 Ta1 3. Th8 Ta8 4. Txh3 Th8 5. Th1 Txh1#
Keywords: Schlüssel = Eckzug, corner to corner (Tt), Umnov, Line opening, Square vacation
FEN: 7K/3p4/3p4/3P4/2P2p2/5pbP/1pPpppn1/1rRrqk2
Input: Gunter Jordan, 2023-07-29
Last update: Gunter Jordan, 2023-07-29 more...
FEN: 7K/3p4/3p4/3P4/2P2p2/5pbP/1pPpppn1/1rRrqk2
Input: Gunter Jordan, 2023-07-29
Last update: Gunter Jordan, 2023-07-29 more...
1. Da8+! Kb6 2. Tc6+ Kb5 3. Da6+ Kb4 4. Tc4+ Kb3 5. Da4+ Kb2 6. Tc2+ Kb1 7. Db3+ Ka1 8. Da3+ Kb1 9. Tb2+ Kc1 10. Dc3+ Kd1 11. Td2+ Ke1 12. De3+ Kf1 13. Tf2+ Kg1 14. Kg3 g4 15. De2 g5 16. Txh2 Txh2 17. Dg2+ Txg2#
Ideengeber: P1098749, vergleiche auch P1409493.
Ideengeber: P1098749, vergleiche auch P1409493.
Keywords: Königswanderung, Sacrifice of white pieces, Checking key, Schlüssel = Eckzug, Symmetrical end position, Round Trip (D-9)
Genre: s#
FEN: 2R5/k7/6p1/6p1/6K1/8/6Qp/7r
Input: Gunter Jordan, 2023-07-30
Last update: Gunter Jordan, 2023-07-31 more...
Genre: s#
FEN: 2R5/k7/6p1/6p1/6K1/8/6Qp/7r
Input: Gunter Jordan, 2023-07-30
Last update: Gunter Jordan, 2023-07-31 more...
1. Dh1! Se6 2. Td5+ Kxd5 3. Kg4# 2. ... Kc6 3. Td6#
1. ... Lc1 2. Kg3 Kxe5 3. Kh4#
1. ... Lc1 2. Kg3 Kxe5 3. Kh4#
Keywords: ambush key, Rook sacrifice, discovered checkmate, Schlüssel = Eckzug
Genre: 3#
FEN: 5n2/7p/PP1k1PpP/p1p1R1P1/P1p5/2PppK1B/2Pb3B/3Q4
Reprints: XXVI Ungarische Schachproblem Anthologie , p. 65, 1983
Input: Dieter Berlin, 2023-07-30
Last update: Gunter Jordan, 2023-07-31 more...
Genre: 3#
FEN: 5n2/7p/PP1k1PpP/p1p1R1P1/P1p5/2PppK1B/2Pb3B/3Q4
Reprints: XXVI Ungarische Schachproblem Anthologie , p. 65, 1983
Input: Dieter Berlin, 2023-07-30
Last update: Gunter Jordan, 2023-07-31 more...
1. Ta1! d4 2. La2 d5 3. Lb1 Le3 4. Lc2+ Lg1 5. Ld1 Le3 6. Le2+ Lg1 7. Lf1 Le3 8. Lg2#
Keywords: double-check mate, Zig Zag Path (L), Schlüssel = Eckzug, Discovered check, Unpinning, Corner mate
Genre: n#
Computer test: Juel: Popeye 4.61
FEN: 8/8/3pB3/3p4/p4p2/P2P1P1K/7p/4R1bk
Reprints: 190 Ungarische Schachproblem Anthologie , p. 176, 1983
Input: Dieter Berlin, 2023-08-05
Last update: Gunter Jordan, 2023-08-06 more...
Genre: n#
Computer test: Juel: Popeye 4.61
FEN: 8/8/3pB3/3p4/p4p2/P2P1P1K/7p/4R1bk
Reprints: 190 Ungarische Schachproblem Anthologie , p. 176, 1983
Input: Dieter Berlin, 2023-08-05
Last update: Gunter Jordan, 2023-08-06 more...
89 - P1411629
Petrasin Petrasinovic
8590 Kudesnik 259 29/07/2023
(6+1)
#2
b)-Bg2 alles eine Linie nach rechts
Petrasin Petrasinovic
8590 Kudesnik 259 29/07/2023
(6+1)
#2
b)-Bg2 alles eine Linie nach rechts
a) 1. Db3? Ke4 2. Dd3#
1. ... Kg4 2. Dh3#
1. ... Kf6 2. Df7#
1. ... Kxg6!
1. Dh8! Ke4 2. De5#
1. ... Kg4 2. Dh3#
1. ... Kxg6 2. Ld3#
1. ... Ke6 2. De5#
b) 1. Lf2? Kg6 2. Dg7#
1. ... Kf4!
1. Lc7? Kg6 2. Dg7#
1. ... Kh4!
1. Dd4? Kxh6 2. Dg7#
1. ... Kg6 2. Dg7#
1. ... Kh4!
1. Dc3! Kf4 2. De3#
1. ... Kh4 2. Ld8#
1. ... Kxh6 2. Dg7#
1. ... Kg6 2. Dg7#
1. ... Kg4 2. Dh3#
1. ... Kf6 2. Df7#
1. ... Kxg6!
1. Dh8! Ke4 2. De5#
1. ... Kg4 2. Dh3#
1. ... Kxg6 2. Ld3#
1. ... Ke6 2. De5#
b) 1. Lf2? Kg6 2. Dg7#
1. ... Kf4!
1. Lc7? Kg6 2. Dg7#
1. ... Kh4!
1. Dd4? Kxh6 2. Dg7#
1. ... Kg6 2. Dg7#
1. ... Kh4!
1. Dc3! Kf4 2. De3#
1. ... Kh4 2. Ld8#
1. ... Kxh6 2. Dg7#
1. ... Kg6 2. Dg7#
1. a8=D+! Kxb6 2. Da7+ Kxa7 3. Ta8+ Kb6 4. b8=D+ Txb8 5. cxb8=D+ Kc6 6. Dd6+ Kxd6 7. d8=D+ Ke5 8. e8=D+ Kf4 9. Dg5+ Kxg5 10. g8=D+ Sxg8 11. hxg8=D+ Kf4 12. f8=D+ Ke3 13. Dxf3+ Kxf3 14. Dh5+ Ke3 15. Dg3#
14. ... Kf4 15. Dgg5#
10. ... Kf4 11. f8=D+ Ke3 12. Dxf3+ Kxf3 13. Dh5+ Sg4 14. Dgxg4+ Ke3 15. Dg3#,Dhh3#
11. ... Sf5 12. Dxf5+ Ke3 13. Dxf3+ Kxf3 14. Dh5+ Ke3 15. Dg3#
14. ... Kf4 15. Dgg5#
Record of 8 white queen promotions
Improvement of P1201958
https://www.matplus.net/start.php?px=1692327608&app=forum&act=posts&fid=gen&tid=3061&pid=25076#n25076
14. ... Kf4 15. Dgg5#
10. ... Kf4 11. f8=D+ Ke3 12. Dxf3+ Kxf3 13. Dh5+ Sg4 14. Dgxg4+ Ke3 15. Dg3#,Dhh3#
11. ... Sf5 12. Dxf5+ Ke3 13. Dxf3+ Kxf3 14. Dh5+ Ke3 15. Dg3#
14. ... Kf4 15. Dgg5#
Record of 8 white queen promotions
Improvement of P1201958
https://www.matplus.net/start.php?px=1692327608&app=forum&act=posts&fid=gen&tid=3061&pid=25076#n25076
Schade um das dualistische Matt. Im strengen Sinn also kein Rekord.
SCHRECKE: sTg8 gehört nach f8! (2023-08-18)
James Malcom: Fixed. (2023-08-18)
SCHRECKE: Der wSb6 ist überflüssig!! (2023-08-18)
James Malcom: That's a surprise. (2023-08-18)
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SCHRECKE: sTg8 gehört nach f8! (2023-08-18)
James Malcom: Fixed. (2023-08-18)
SCHRECKE: Der wSb6 ist überflüssig!! (2023-08-18)
James Malcom: That's a surprise. (2023-08-18)
comment
Keywords: Promotion (DDDDDDDD x8), Construction record, Promotion key, konsekutive Umwandlungen 8 (DDDDDDDD), Checking key, Schlüssel = Eckzug, Phoenix, Antiphönix, Switchback (k)
Computer test: Popeye 4.87 Gustav
FEN: 1R3r2/PPPPPPPP/kN5n/1pp5/1n1bp3/2r2p2/1Kbq4/7N
Input: James Malcom, 2023-08-18
Last update: Gunter Jordan, 2023-08-18 more...
Computer test: Popeye 4.87 Gustav
FEN: 1R3r2/PPPPPPPP/kN5n/1pp5/1n1bp3/2r2p2/1Kbq4/7N
Input: James Malcom, 2023-08-18
Last update: Gunter Jordan, 2023-08-18 more...
91 - P1412776
Sergiy Karnatsky
C437 Problemist Ukrainy 77 07-09/2023
1. ehrende Erwähnung
(8+6) C+
#13
Sergiy Karnatsky
C437 Problemist Ukrainy 77 07-09/2023
1. ehrende Erwähnung
(8+6) C+
#13
1. Ta6-a1+! Kb1-c2 2. Ta1-c1+ Kc2-d3 3. Tc1-c3+ Kd3-e4 4. Tc3-e3+ Ke4-f5 5. Te3-e5+ Kf5-g6 6. Te5-g5+ Kg6-h7 7. Tg5-h5+ Kh7-g6 8. Th5-h6+ Kg6-f5 9. Th6-f6+ Kf5-e4 10. Tf6-f4+ Ke4-d3 11. Tf4-d4+ Kd3-c2 12. Td4-d2+ Kc2-b1 13. Td2-b2#
Judge Yuri Gordian 10/2023
Judge Yuri Gordian 10/2023
Keywords: Schlüssel = Eckzug, Checking key, Perpetual check, Switchback (k), Rook's Staircase
Genre: n#
Computer test: Gustav 4.1c
FEN: 6rB/1n3N2/R3P3/3b4/1K4p1/1N4P1/4pP2/1k6
Input: Marcin Banaszek, 2023-10-06
Last update: Gunter Jordan, 2023-10-06 more...
Genre: n#
Computer test: Gustav 4.1c
FEN: 6rB/1n3N2/R3P3/3b4/1K4p1/1N4P1/4pP2/1k6
Input: Marcin Banaszek, 2023-10-06
Last update: Gunter Jordan, 2023-10-06 more...
92 - P1413136
Mykola R. Vasyuchko
Mykhailo T. Halma
G947 Problemist Ukrainy 78 10-12/2023
(2+13)
ser-h#7
Mykola R. Vasyuchko
Mykhailo T. Halma
G947 Problemist Ukrainy 78 10-12/2023
(2+13)
ser-h#7
1. Th1 2. T6h2 3. Lh3 4. Dg4 5. Sf5 6. Lg3 7. Se5 Th8#
Keywords: Minimal (T), Schlüssel = Eckzug, black Bristol, Model mate, Line closing
Genre: Fairies
FEN: kb6/pp1q3R/2nnb1pr/6pr/8/8/3Kp3/8
Input: Marcin Banaszek, 2023-10-23
Last update: Gunter Jordan, 2023-10-23 more...
Genre: Fairies
FEN: kb6/pp1q3R/2nnb1pr/6pr/8/8/3Kp3/8
Input: Marcin Banaszek, 2023-10-23
Last update: Gunter Jordan, 2023-10-23 more...
1. Db6? Kc4 2. Dd4#
1. ... Ka3 2. Da5#
1. ... Ka4!
1. Dc2? Ka3 2. Db3#
1. ... Ka5!
1. Dc1? Ka5 2. Da3#
1. ... Ka4!
1. Sc3? Ka5 2. Dxb5#
1. ... Ka3!
1. Da8! Kc4 2. De4#
1. ... Ka3,Ka4,Ka5 2. Lc5#
1. ... Ka3 2. Da5#
1. ... Ka4!
1. Dc2? Ka3 2. Db3#
1. ... Ka5!
1. Dc1? Ka5 2. Da3#
1. ... Ka4!
1. Sc3? Ka5 2. Dxb5#
1. ... Ka3!
1. Da8! Kc4 2. De4#
1. ... Ka3,Ka4,Ka5 2. Lc5#
1. Da1! Tb8,Td8,Te8,Tf8 2. Tb7+,Td7+,Te7+,Tf7+ Kg8 3. Dg7#
1. ... Lf3+ 2. Tg2+ Kh7 3. Dg7#
1. ... Lf3+ 2. Tg2+ Kh7 3. Dg7#
1. Dh1 Kd2 2. Sd5 Kc2 3. Dd1#
1. ... Kf2 2. Sg4+ Kxg3 3. Dh2#
1. ... Kd4 2. Sf5+ Ke5 3. De4#
2. ... Kc5 3. Sd7#
2. ... Kc3 3. Dc1#
1. ... Kf4 2. Sg4 Kxg3 3. Dh2#
2. ... Kxg5 3. Dh6#
1. ... Kf2 2. Sg4+ Kxg3 3. Dh2#
1. ... Kd4 2. Sf5+ Ke5 3. De4#
2. ... Kc5 3. Sd7#
2. ... Kc3 3. Dc1#
1. ... Kf4 2. Sg4 Kxg3 3. Dh2#
2. ... Kxg5 3. Dh6#
1. Dh1! Dxh1 2. Txg5+ Tf5 3. Txf5#
1. ... Ke5 2. Dxe4+ Kf6 3. De6#
1. ... Ke5 2. Dxe4+ Kf6 3. De6#
SCHRECKE: Unlösbar - 1. Dh1!? Ke5 2. Dxe4+ Kf6+! (2024-02-24)
Thomas Woschnik: wKb6 +wBa5 Dann Lösung w. o. (2024-02-26)
Gunter Jordan: Die Autorlösung (und die von TW) könnte auch einfach mit einem sLg5 erreicht werden. So oder so gibt es kleine Mattduale (z. B. nach 1. ... Tf4,Tf3 2. Txg5+). (2024-02-27)
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Thomas Woschnik: wKb6 +wBa5 Dann Lösung w. o. (2024-02-26)
Gunter Jordan: Die Autorlösung (und die von TW) könnte auch einfach mit einem sLg5 erreicht werden. So oder so gibt es kleine Mattduale (z. B. nach 1. ... Tf4,Tf3 2. Txg5+). (2024-02-27)
comment
Keywords: Sacrifice key, Epaulettenmatt, Schlüssel = Eckzug, corner to corner (D)
Genre: 3#
Computer test: SCHRECKE: Unlösbar!
FEN: 5N2/1p3r2/3p3P/1K1k2rR/3pq3/3P4/8/Q7
Input: Dieter Berlin, 2024-02-24
Last update: Gunter Jordan, 2024-02-27 more...
Genre: 3#
Computer test: SCHRECKE: Unlösbar!
FEN: 5N2/1p3r2/3p3P/1K1k2rR/3pq3/3P4/8/Q7
Input: Dieter Berlin, 2024-02-24
Last update: Gunter Jordan, 2024-02-27 more...
* 1. ... Kc3 2. h8=D+ Kc4 3. Df8! Kc3 4. Da3+ Kc4 5. Tb5! axb5#
1. h8=T! Kc3 2. Th1! Kc4 3. Ta1! Kc3 4. Ta3+ Kc4 5. Tb5! axb5#
1. h8=T! Kc3 2. Th1! Kc4 3. Ta1! Kc3 4. Ta3+ Kc4 5. Tb5! axb5#
Keywords: changed blocks, under-promotion key, under-promotion (T), Promotion (D im *), Exchange of Promotions, Schlüssel = Eckzug, Minimal (b), Pawn mate, Switchback (k), Selfblock, Antiphönix, Rook sacrifice, corner to corner (T)
Genre: s#
FEN: 8/7P/p7/P2R4/K1k5/8/3R4/8
Input: Rainer Staudte, 2024-02-29
Last update: Gunter Jordan, 2024-02-29 more...
Genre: s#
FEN: 8/7P/p7/P2R4/K1k5/8/3R4/8
Input: Rainer Staudte, 2024-02-29
Last update: Gunter Jordan, 2024-02-29 more...
1) 1. Dxa8 e8=L 2. Dxd5 Lh5#
2) 1. Dxh8 e8=T 2. Dxh7 Te4#
2) 1. Dxh8 e8=T 2. Dxh7 Te4#
Keywords: Anti-kings, corner to corner (d), Phoenix, Capture key, Schlüssel = Eckzug, under-promotion (l,t)
Genre: Fairies
FEN: B5KR/4P2R/8/3Q4/5Pr1/6P1/8/q6k
Input: Gunter Jordan, 2024-04-07
Last update: Gunter Jordan, 2024-04-07 more...
Genre: Fairies
FEN: B5KR/4P2R/8/3Q4/5Pr1/6P1/8/q6k
Input: Gunter Jordan, 2024-04-07
Last update: Gunter Jordan, 2024-04-07 more...
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The problems of this query have been registered by the following contributors:
Selbstmatt-Miniaturen/Reflexmatt-Miniaturen (1)Frank Müller (9)
Brian Stephenson (1)
HBae (2)
GüBü (1)
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TLi (1)
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SCHRECKE: C+, popeye 4.87 (2023-03-13)
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