39 problem(s) found in 2463 milliseconds (displaying 39 problem(s)). [COMMENTDATE>=20220810 AND NOT S='Schach' AND K='Umwandlungsschlüssel'] [download as LaTeX]
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#
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. d8=D!
Keywords: Miniature Collection (0308194), Minimal (b), Miniature, Promotion key (D), Zugzwang-Goal
Genre: 2#
FEN: 8/3P4/4Qn2/4N2k/7P/8/8/K7
Input: Zuncke/Bruder, 2010-09-11
Last update: Dieter Berlin, 2024-03-11 more...
Genre: 2#
FEN: 8/3P4/4Qn2/4N2k/7P/8/8/K7
Input: Zuncke/Bruder, 2010-09-11
Last update: Dieter Berlin, 2024-03-11 more...
1. e8=T! (Zugzwang)
1. ... Sa5 2. Sc5#
1. ... Sb4 2. Sc3#
1. ... Sd4,Se5,Se7 2. Ta8#
1. ... Sd8,Sb8,Sa7 2. Te4#
1. ... Sa5 2. Sc5#
1. ... Sb4 2. Sc3#
1. ... Sd4,Se5,Se7 2. Ta8#
1. ... Sd8,Sb8,Sa7 2. Te4#
Keywords: Miniature Collection (0006994), under-promotion (T), Promotion key
Genre: 2#
FEN: 8/1N2P3/2n5/8/k7/3B4/NK6/8
Reprints: 18 Neues Wiener Journal 04/12/1920
Input: Felber, Volker, 2010-09-11
Last update: Rainer Staudte, 2023-01-19 more...
Genre: 2#
FEN: 8/1N2P3/2n5/8/k7/3B4/NK6/8
Reprints: 18 Neues Wiener Journal 04/12/1920
Input: Felber, Volker, 2010-09-11
Last update: Rainer Staudte, 2023-01-19 more...
1. h8=T
BUT20
SCHRECKE: C+, popeye 4.87
1. h8=T! (Zugzwang)
1. ... Sa4,Sc4 2. Th1#
1. ... Sd1,Sd3 2. Ta8# (2022-08-17)
comment
SCHRECKE: C+, popeye 4.87
1. h8=T! (Zugzwang)
1. ... Sa4,Sc4 2. Th1#
1. ... Sd1,Sd3 2. Ta8# (2022-08-17)
comment
Keywords: Miniature Collection (0315868), Promotion key (T), Stalemate avoidance
Genre: 2#
FEN: 8/7P/8/8/8/1K6/1nB5/k7
Input: Zuncke/Bruder, 2010-09-11
Last update: Rainer Staudte, 2022-08-17 more...
Genre: 2#
FEN: 8/7P/8/8/8/1K6/1nB5/k7
Input: Zuncke/Bruder, 2010-09-11
Last update: Rainer Staudte, 2022-08-17 more...
1. g8=T Kxa1 2. Kc2 Ka2 3. Ta8#
Keywords: Miniature Collection (0049609), Promotion key (L), under-promotion (L)
Genre: 3#
FEN: 8/6P1/8/8/8/3K4/1k6/R7
Input: Felber, Volker, 2010-09-11
Last update: Rainer Staudte, 2023-02-04 more...
Genre: 3#
FEN: 8/6P1/8/8/8/3K4/1k6/R7
Input: Felber, Volker, 2010-09-11
Last update: Rainer Staudte, 2023-02-04 more...
Keywords: Miniature Collection (0313967), anticipated (P1411221), Promotion key (S), under-promotion (S), Flight taking, Ideal mate
Genre: 2#
FEN: 8/3P4/3p4/3k4/8/3K4/3Q4/8
Input: Zuncke/Bruder, 2010-09-11
Last update: Rainer Staudte, 2023-07-25 more...
Genre: 2#
FEN: 8/3P4/3p4/3k4/8/3K4/3Q4/8
Input: Zuncke/Bruder, 2010-09-11
Last update: Rainer Staudte, 2023-07-25 more...
a) 1. g8=S Kd5 2. Sf6#;
b) 1. g8=D Kf5 2. De6#
b) 1. g8=D Kf5 2. De6#
Keywords: Miniature Collection (0311263), Miniature, Rex solus, under-promotion key (wS), Promotion key (wD)
Genre: 2#
Computer test: SCHRECKE: popeye 4.87 a)+b)
FEN: 8/3K2P1/8/8/4k1P1/2Q4N/8/8
Input: Zuncke/Bruder, 2010-09-11
Last update: Dieter Berlin, 2022-11-08 more...
Genre: 2#
Computer test: SCHRECKE: popeye 4.87 a)+b)
FEN: 8/3K2P1/8/8/4k1P1/2Q4N/8/8
Input: Zuncke/Bruder, 2010-09-11
Last update: Dieter Berlin, 2022-11-08 more...
1. h8=D! Ka2 2. Db8 Ka1 3. Db2#
1. ... Kb1 2. Dh2 Ka1 3. Db2#
1. ... f3 2. d5+ Kb1 3. Db2#
1. ... Kb1 2. Dh2 Ka1 3. Db2#
1. ... f3 2. d5+ Kb1 3. Db2#
Keywords: Miniature Collection (0331867), Minimal, Miniature, Promotion key (D), Battery creation
Genre: 3#
Computer test: SCHRECKE: popeye 4.87
FEN: 8/7P/8/8/2NP1p2/8/8/k3K3
Input: Zuncke/Bruder, 2010-09-11
Last update: Dieter Berlin, 2023-01-08 more...
Genre: 3#
Computer test: SCHRECKE: popeye 4.87
FEN: 8/7P/8/8/2NP1p2/8/8/k3K3
Input: Zuncke/Bruder, 2010-09-11
Last update: Dieter Berlin, 2023-01-08 more...
1. g8=T g2 2. Txg2 Kf3 3. 0-0#
Keywords: Miniature Collection (0051833), Promotion key (T), under-promotion (T)
Genre: 3#
FEN: 8/6P1/4R3/5p2/5k2/6p1/8/4K2R
Input: Felber, Volker, 2010-09-11
Last update: Rainer Staudte, 2022-12-11 more...
Genre: 3#
FEN: 8/6P1/4R3/5p2/5k2/6p1/8/4K2R
Input: Felber, Volker, 2010-09-11
Last update: Rainer Staudte, 2022-12-11 more...
10 - P1148961
Klaus-Peter Zuncke
10004 Die Schwalbe 171, p. 440, 06/1998
Spezialpreis
(5+1)
#3
2.1...
Klaus-Peter Zuncke
10004 Die Schwalbe 171, p. 440, 06/1998
Spezialpreis
(5+1)
#3
2.1...
1. d8=S Ke5 2. g8=T Kd5 3. Tg5#
1. g8=D+ Kc6 2. d8=L Kd7 3. De8#
1. g8=D+ Kc6 2. d8=L Kd7 3. De8#
Keywords: Miniature Collection (0004799), Miniature, Rex solus (s), Allumwandlung, under-promotion key (in a), Promotion key (in b)
Genre: 3#
FEN: 8/3P2P1/3N4/3k4/4N3/4K3/8/8
Input: Felber, Volker, 2010-09-12
Last update: Gunter Jordan, 2022-08-29 more...
Genre: 3#
FEN: 8/3P2P1/3N4/3k4/4N3/4K3/8/8
Input: Felber, Volker, 2010-09-12
Last update: Gunter Jordan, 2022-08-29 more...
11 - P1150117
Nils Adrian Bakke
XXXIV The Problemist 6 Special, p. 268, 11/1997
BJM-60 1. Lob ex aequo
(5+1) C+
#3
b) wLh4->d4
Nils Adrian Bakke
XXXIV The Problemist 6 Special, p. 268, 11/1997
BJM-60 1. Lob ex aequo
(5+1) C+
#3
b) wLh4->d4
a) 1. e8=L Kd6 2. c8=T Ke6 3. Tc6#;
b) 1. e8=D+ Kd6 2. c8=S+ Kc7 3. Le5#
b) 1. e8=D+ Kd6 2. c8=S+ Kc7 3. Le5#
Keywords: Miniature Collection (0053113), Promotion key (L,D), konsekutive Umwandlungen 2 (LT,DS), Allumwandlung (LT,DS), Miniature
Genre: 3#
Computer test: SCHRECKE: popeye 4.87
FEN: 8/2P1P3/P3k3/8/4K2B/8/8/8
Input: Felber, Volker, 2010-09-12
Last update: Dieter Berlin, 2023-02-08 more...
Genre: 3#
Computer test: SCHRECKE: popeye 4.87
FEN: 8/2P1P3/P3k3/8/4K2B/8/8/8
Input: Felber, Volker, 2010-09-12
Last update: Dieter Berlin, 2023-02-08 more...
a) 1. g8=L;
b) 1. g8=S;
c) 1. g8=D
b) 1. g8=S;
c) 1. g8=D
Keywords: Miniature Collection (0304474), Rex solus, Miniature, under-promotion key (wL, wS), Promotion key (wD), Flight-giving key
Genre: 2#
Computer test: Juel: Popeye 4.61
FEN: 1B5R/1B1k2PP/5K2/8/8/8/8/8
Input: Zuncke/Bruder, 2010-09-12
Last update: Dieter Berlin, 2022-11-08 more...
Genre: 2#
Computer test: Juel: Popeye 4.61
FEN: 1B5R/1B1k2PP/5K2/8/8/8/8/8
Input: Zuncke/Bruder, 2010-09-12
Last update: Dieter Berlin, 2022-11-08 more...
1. e8=L
BUL24
SCHRECKE: C+, popeye 4.87
1. e8=L! (Zugzwang)
1. ... Sf3,Sg4,Sg6,Sf7 2. Lb5#
1. ... Sd3,Sc4,Sc6,Sd7 2. Lh5# (2022-09-07)
comment
SCHRECKE: C+, popeye 4.87
1. e8=L! (Zugzwang)
1. ... Sf3,Sg4,Sg6,Sf7 2. Lb5#
1. ... Sd3,Sc4,Sc6,Sd7 2. Lh5# (2022-09-07)
comment
Keywords: Miniature Collection (0310219), Promotion key (L), under-promotion (L)
Genre: 2#
FEN: 8/4P3/8/4n3/8/2B5/2B1kPK1/8
Input: Zuncke/Bruder, 2010-09-12
Last update: Rainer Staudte, 2022-09-06 more...
Genre: 2#
FEN: 8/4P3/8/4n3/8/2B5/2B1kPK1/8
Input: Zuncke/Bruder, 2010-09-12
Last update: Rainer Staudte, 2022-09-06 more...
* 1. ... Lf7+ 2. c8=S+ Txc8#
1. c8=D Lf7 2. Dd8+ Txd8#
1. c8=D Lf7 2. Dd8+ Txd8#
Keywords: Exchange of Promotions, under-promotion (wS), Promotion key (wD)
Genre: s#
Computer test: SCHRECKE: popeye 4.89
FEN: K5br/2P4p/pk1Pp2P/p3N3/P2P4/8/8/8
Input: Frank Müller, 2011-04-28
Last update: Dieter Berlin, 2023-12-04 more...
Genre: s#
Computer test: SCHRECKE: popeye 4.89
FEN: K5br/2P4p/pk1Pp2P/p3N3/P2P4/8/8/8
Input: Frank Müller, 2011-04-28
Last update: Dieter Berlin, 2023-12-04 more...
15 - P1196784
Gunter Jordan
209 Pat a Mat 71 06/2010
(2+2)
h#3
2 Lösungen
Vogtländerschach
Weißer Längstzüger
Gunter Jordan
209 Pat a Mat 71 06/2010
(2+2)
h#3
2 Lösungen
Vogtländerschach
Weißer Längstzüger
1. c1=L Sa3 2. Lxa3 Kb6 3. Kb2 Kc5#
1. Kd3 Sd2 2. Kxd2 Kb4 3. c1=L Ka3#
1. Kd3 Sd2 2. Kxd2 Kb4 3. c1=L Ka3#
Keywords: Echo, Maximummer (Weiss), Promotion key, under-promotion, Vogtländer Chess
Genre: h#, Fairies
FEN: 8/8/8/K7/2N5/2k5/2p5/8
Input: Gunter Jordan, 2011-06-03
Last update: A.Buchanan, 2024-01-18 more...
Genre: h#, Fairies
FEN: 8/8/8/K7/2N5/2k5/2p5/8
Input: Gunter Jordan, 2011-06-03
Last update: A.Buchanan, 2024-01-18 more...
16 - P1231430
C. Klobasa
153v Die Schwalbe , p. 111, 12/1940
20. Thema (aus 'Der junge Aufgabenfreund')
(5+1)
#2
C. Klobasa
153v Die Schwalbe , p. 111, 12/1940
20. Thema (aus 'Der junge Aufgabenfreund')
(5+1)
#2
1. f8=D! Kxc4 2. Df7#,Df8#
1. ... Ke4 2. Df3#
1. ... Kc6 2. Dc5#,Dd6#
1. ... Ke6 2. Df7#
Korrektur 02/1942, Seite 252 in der LB: wKe8
1. ... Ke4 2. Df3#
1. ... Kc6 2. Dc5#,Dd6#
1. ... Ke6 2. Df7#
Korrektur 02/1942, Seite 252 in der LB: wKe8
Keywords: X flights, Rex solus (s), Miniature, Promotion key, Promotions to queens
Genre: 2#
FEN: 4K3/B4P2/8/3k4/2N5/1R6/8/8
Input: Felber, Volker, 2012-02-01
Last update: Rainer Staudte, 2023-01-19 more...
Genre: 2#
FEN: 4K3/B4P2/8/3k4/2N5/1R6/8/8
Input: Felber, Volker, 2012-02-01
Last update: Rainer Staudte, 2023-01-19 more...
17 - P1237750
George P. Sphicas
2666v Ideal-Mate Review 07-09/1988
nach U. Heinonen
(8+8) C+
ser-h#40
George P. Sphicas
2666v Ideal-Mate Review 07-09/1988
nach U. Heinonen
(8+8) C+
ser-h#40
1. h1=D 2. Dxh5 3. De8 4. h5 5. h4 6. hxg3 7. g2 8. g1=D 9. Dxg4 10. f1=L 11. Ld3 12. Lxc2 13. Lf5 14. c2 15. c1=L 16. Lxa3 17. Ld6 18. a3 19. a2 20. a1=S 21. Sb3 22. Sxa5 23. Sc6 24. a5 25. a4 26. a3 27. a2 28. a1=T 29. Ta8 30. Td8 31. Lc8 32. Ke6 33. Kd7 34. Dge6 35. g4 36. g3 37. g2 38. g1=T 39. Tg7 40. Te7 bxc6#
Keywords: Ideal mate, Kindergarten Problem, Seriesmover, Allumwandlung, konsekutive Umwandlungen 7 (ddllstt), Pawn mate, Selfblock, Entblockung, Promotion, under-promotion, Promotions to rooks, Promotions to queens, Promotions to bishops, Promotion key
Genre: Fairies
Computer test: V. Kotesovec: Alybadix (1 h 23 m)
FEN: 8/7p/pK6/PP1k2pP/p5P1/P1p3P1/2P2p1p/8
Reprints: G26 FIDE Album 1986-1988 , p. 464,
(60) Ideal-Mate Review 53 07-09/1994
4) idee & form 161, p. 5461, 01/2024
Input: Frank Müller, 2012-05-01
Last update: Gunter Jordan, 2024-03-13 more...
Genre: Fairies
Computer test: V. Kotesovec: Alybadix (1 h 23 m)
FEN: 8/7p/pK6/PP1k2pP/p5P1/P1p3P1/2P2p1p/8
Reprints: G26 FIDE Album 1986-1988 , p. 464,
(60) Ideal-Mate Review 53 07-09/1994
4) idee & form 161, p. 5461, 01/2024
Input: Frank Müller, 2012-05-01
Last update: Gunter Jordan, 2024-03-13 more...
18 - P1243752
Karol Mlynka
437 Gaudium 99 02/2010
(2+3)
h#2
b) sBc2->b2
c) sKh5->g2
Pressburger König f5
Karol Mlynka
437 Gaudium 99 02/2010
(2+3)
h#2
b) sBc2->b2
c) sKh5->g2
Pressburger König f5
a) 1. c1=D h4 2. Dg5+ Kxg5(=wD)#
b) 1. Kh4 h3 2. b1=D+ Kg4(=wD)#
c) 1. Kh3 Kg5 2. c1=D+ Kg3(=wD)#
b) 1. Kh4 h3 2. b1=D+ Kg4(=wD)#
c) 1. Kh3 Kg5 2. c1=D+ Kg3(=wD)#
Keywords: Echo (3-fach), Promotion key (d in a), Model mate, Promotions to queens, Minimal (B)
FEN: 8/8/8/4p*2K1k/8/8/2p4P/8
Input: Gunter Jordan, 2012-07-02
Last update: Gunter Jordan, 2023-03-04 more...
FEN: 8/8/8/4p*2K1k/8/8/2p4P/8
Input: Gunter Jordan, 2012-07-02
Last update: Gunter Jordan, 2023-03-04 more...
1. d8=L Kd4 2. Sa2 Kc4 3. Sa5+ Kd4 4. Th4 f4 5. Lb6+ Sec5 6. Th8 f3 7. Ta8 f2 8. Db4+ Sxb4 9. Sc6+ Sxc6#
Olaf Jenkner: nach Murarasu/Raican: P1097068 (2018-06-19)
Anton Baumann: C+ Gustav 4.2a (2022-11-03)
more ...
comment
Anton Baumann: C+ Gustav 4.2a (2022-11-03)
more ...
comment
Keywords: Promotion key, under-promotion (L)
Genre: s#
FEN: 8/KN1P2B1/8/4Rp2/2k1nR2/3n4/3Q4/2N2B2
Input: Frank Müller, 2017-09-10
Last update: Marcin Banaszek, 2022-11-04 more...
Genre: s#
FEN: 8/KN1P2B1/8/4Rp2/2k1nR2/3n4/3Q4/2N2B2
Input: Frank Müller, 2017-09-10
Last update: Marcin Banaszek, 2022-11-04 more...
1. f8=T! Ke7 2. Sg6+ Ke6 3. g4 fxg4 4. f5#
athulin: Oddly enough, this problem competed in the endgame section of
the Commercial Gazette (Cincinnati) 7th Tourney, 1883. The stipulation clearly showed that it
was a mate-in-four position, so its presence in an endgame section is a bit of a mystery. (2022-11-16)
athulin: The problem was published under the name Guerilla, most likely a pseudonym which was later connected with Lyons in a biographical sketch published in _The Daily American,_ (Nashville) vol. 12, i. 3997 (1887-08-21, p. 11), probably reprinted from _Kentucky State Journal_. (2022-11-16)
more ...
comment
the Commercial Gazette (Cincinnati) 7th Tourney, 1883. The stipulation clearly showed that it
was a mate-in-four position, so its presence in an endgame section is a bit of a mystery. (2022-11-16)
athulin: The problem was published under the name Guerilla, most likely a pseudonym which was later connected with Lyons in a biographical sketch published in _The Daily American,_ (Nashville) vol. 12, i. 3997 (1887-08-21, p. 11), probably reprinted from _Kentucky State Journal_. (2022-11-16)
more ...
comment
Keywords: under-promotion (T), Promotion key, Minimal (b), Miniature
Genre: n#
Computer test: Popeye 4.61
FEN: 8/5P2/2K1k3/5p2/5P1N/8/6P1/8
Input: Rainer Staudte, 2018-12-03
Last update: Gunter Jordan, 2022-11-17 more...
Genre: n#
Computer test: Popeye 4.61
FEN: 8/5P2/2K1k3/5p2/5P1N/8/6P1/8
Input: Rainer Staudte, 2018-12-03
Last update: Gunter Jordan, 2022-11-17 more...
1. Kf5? Kh4!
1. f8=D Kh4! 2. Df1! Kg3 3. Kf5 Kh2 4. Kf4! g3 5. Kf3 g2 6. Dxg2#
4. Kxg4? patt
3. ... Kh4 4. Dg2 g3 5. Dh1#
1. f8=D Kh4! 2. Df1! Kg3 3. Kf5 Kh2 4. Kf4! g3 5. Kf3 g2 6. Dxg2#
4. Kxg4? patt
3. ... Kh4 4. Dg2 g3 5. Dh1#
Keywords: Stalemate avoidance, Block, Kindergarten Problem, Promotion key
Genre: n#
FEN: 8/5P2/4K3/7k/6p1/8/8/8
Input: Rainer Staudte, 2018-12-08
Last update: Rainer Staudte, 2023-01-19 more...
Genre: n#
FEN: 8/5P2/4K3/7k/6p1/8/8/8
Input: Rainer Staudte, 2018-12-08
Last update: Rainer Staudte, 2023-01-19 more...
1. Kf4? g5+ 2. Kf5 Te1 3. Tc4+ Kg3 4. Te4 f2
1. e8=D! Te1+ 2. Kf4 g5+ 3. Kxf3 g4+ 4. Kf4 Tf1+ 5. Ke3 Te1+ 6. Te2
1. e8=D! Te1+ 2. Kf4 g5+ 3. Kxf3 g4+ 4. Kf4 Tf1+ 5. Ke3 Te1+ 6. Te2
Keywords: Line closing, Promotion key
Genre: Studies
FEN: 8/4Ppp1/8/8/4K2k/5p2/2R5/5r2
Input: Rainer Staudte, 2019-03-17
Last update: Alfred Pfeiffer, 2019-03-18 more...
Genre: Studies
FEN: 8/4Ppp1/8/8/4K2k/5p2/2R5/5r2
Input: Rainer Staudte, 2019-03-17
Last update: Alfred Pfeiffer, 2019-03-18 more...
1. Lf7? droht 2. Sd5#,Sh5#
1. ... Dxf7? 2. g8=S#
1. ... Tb4!
1. d8=S! droht 2. Se8+! Dxe8 3. g8=S#
1. ... Txd8 2. Lf7! Dxf7 3. g8=S#
2. ... exf4,gxf4 3. Dd4#,Dh4#
1. ... Sf5+ 2. Sd5+! Dxd5 3. g8=S#
1. ... De6+ 2. Sxe6 Sf5 3. g8=S#
1. d8=D? De6+?,gxf4? 2. Sxe6+,Dh4+
1. ... exf4! 2. ?
Schwarz droht 1. ... De6+ und auch 1. ... exf4,gxf4, worauf Weiß im Satz keine Mattführung besitzt
1. ... Dxf7? 2. g8=S#
1. ... Tb4!
1. d8=S! droht 2. Se8+! Dxe8 3. g8=S#
1. ... Txd8 2. Lf7! Dxf7 3. g8=S#
2. ... exf4,gxf4 3. Dd4#,Dh4#
1. ... Sf5+ 2. Sd5+! Dxd5 3. g8=S#
1. ... De6+ 2. Sxe6 Sf5 3. g8=S#
1. d8=D? De6+?,gxf4? 2. Sxe6+,Dh4+
1. ... exf4! 2. ?
Schwarz droht 1. ... De6+ und auch 1. ... exf4,gxf4, worauf Weiß im Satz keine Mattführung besitzt
'NDZ': "Eine wuchtige Komposition aus unserem Leserkreis."; zum Autor ist angegeben: Johann Peter Vogelsang (Hannover)
Henrik Juel: C+ Popeye 4.61, except for some mate duals (2023-01-19)
comment
Henrik Juel: C+ Popeye 4.61, except for some mate duals (2023-01-19)
comment
Keywords: konsekutive Umwandlungen 2 (SS), under-promotion, Promotion key, Promotion in the mating move
Genre: 3#
FEN: rr4qB/3Pn1P1/3N1k2/b1n1p1pB/5NK1/8/5Q2/8
Input: Mario Richter, 2019-12-10
Last update: Rainer Staudte, 2023-01-19 more...
Genre: 3#
FEN: rr4qB/3Pn1P1/3N1k2/b1n1p1pB/5NK1/8/5Q2/8
Input: Mario Richter, 2019-12-10
Last update: Rainer Staudte, 2023-01-19 more...
1. a8=D! Da5 2. Dxa5 Txa5 3. b8=D Ta1 4. Da8+ Txa8 5. e8=D Ta1 6. Da8+ Txa8 7. La3 Txa3 8. g8=D Ta1 9. Da8+ Txa8 10. c8=D Ta1 11. Dc6+ e4 12. Da4 Txa4 13. h8=D Tb4 14. Sc3 Tb2 15. d8=D Te2 16. Sxe2 dxe2+ 17. Kxe2 Kg2 18. Da1 Sf4+ 19. Kd2 f1=S+ 20. Kc3 Se2+ 21. Kxc4 Le3 22. f8=D Seg3 23. Dfa3 Sd2+ 24. Kb5 Lf4 25. Dd1 Sdf1 26. Da2,Db2+ Sd2 27. Daxd2,D8xd2+ Lxd2 28. D8xd2,D2xd2+ Kh3 29. Df2 e3 30. Dxe3 f4 31. Df2 Sf1 32. Ddf3+ Sg3 33. D2g2#
http://www.arves.org/arves/index.php/en/awards/awards-replayable/1341-tarasiuk-50-jt-2018
Reprint: http://superproblem.ru/archive/probl/N/Popov-33-2018.gif
Cook: Mate in 14 with changed colours and sides:
1... a2-a1D 2.Da3-b3 d2-d1D 3.Db3-b6 Da1-a8 4.Db6-c7 Sd8-c6 5.Sh6-f5 Da8-d8 6.Td4-a4 Dd1-d4 7.Ta4xd4 g2-g1D 8.Td4-a4 Dd8-f6 9.Kh8-h7 Df6-g6 10.Kh7xg6 Dg1xg4 11.Kg6-f6 Dg4xf5 12.Be4xf5 e2-e1D 13.Ta4-a8 Sc6-b8 14.Dc7-c8 De1-e8 15.f7xe8D#
2... b2-b1D 3.Db3-d5 d2-d1D 4.Dd5-g5 Dd1xd4 5.Be4-e5 Dd4xe5 6.Bf4xe5 Da1xe5 7.Dg5xe5 Sd8-e6 8.De5-f6 Db1-b7 9.Sh6-f5 Db7-b2 10.Df6xb2 e2-e1D 11.Db2-b8 Se6-d8 12.Db8xd8 De1-e8 13.f7xe8D#
2... b2-b1T 3.Db3-d5 Tb1-b7 4.Dd5-e5 Da1xd4 5.De5xd4 Tb7xf7 6.Sh6xf7 d2-d1D 7.Dd4-f6 Sd8-c6 8.Sf7-h6 Kf8-e8 9.Df6-e6 Sc6-e7 10.De6xe7#
2... Da1-a5 3.Db3-d5 d2-d1D 4.Dd5-g5 Dd1xd4 5.Be4-e5 Dd4xe5 6.Bf4xe5 Sd8xf7 7.Lg8xf7 nebst 8.Dg5-e7/Dg5-g7/Dg5-g8#
2... Da1-a7 3.Db3-b5 Da7xf7 4.Lg8xf7 Sd8xf7 5.Sh6xf7 b2-b1D 6.Db5-d7 Db1-b7 7.Dd7xb7 nebst 8.Db7-e7#
2... Da1-a8 3.Td4-a4 Da8-a7 4.Ta4xa7 b2-b1D 5.Ta7-e7 Db1-a1 6.Be4-e5 Da1-a4 7.Db3xa4 droht 8.Da4-e8/Te7-e8#
2... e2-e1D 3.Db3-b8 Da1-a5 4.Bd6-d7 De1xe4 5.Td4xe4 Da5-c3 6.Te4-e5 Dc3xe5 7.Bf4xe5 nebst 8.Db8-d6/Db8xd8#
1... a2-a1T 2.Td4-d5 Ta1xa3 3.Td5-e5 Sd8-e6 4.Te5xe6 Ta3-a8 5.Bd6-d7 Ta8-b8 6.Te6-e8 Tb8xe8 7.d7xe8D#
http://www.arves.org/arves/index.php/en/awards/awards-replayable/1341-tarasiuk-50-jt-2018
Reprint: http://superproblem.ru/archive/probl/N/Popov-33-2018.gif
Cook: Mate in 14 with changed colours and sides:
1... a2-a1D 2.Da3-b3 d2-d1D 3.Db3-b6 Da1-a8 4.Db6-c7 Sd8-c6 5.Sh6-f5 Da8-d8 6.Td4-a4 Dd1-d4 7.Ta4xd4 g2-g1D 8.Td4-a4 Dd8-f6 9.Kh8-h7 Df6-g6 10.Kh7xg6 Dg1xg4 11.Kg6-f6 Dg4xf5 12.Be4xf5 e2-e1D 13.Ta4-a8 Sc6-b8 14.Dc7-c8 De1-e8 15.f7xe8D#
2... b2-b1D 3.Db3-d5 d2-d1D 4.Dd5-g5 Dd1xd4 5.Be4-e5 Dd4xe5 6.Bf4xe5 Da1xe5 7.Dg5xe5 Sd8-e6 8.De5-f6 Db1-b7 9.Sh6-f5 Db7-b2 10.Df6xb2 e2-e1D 11.Db2-b8 Se6-d8 12.Db8xd8 De1-e8 13.f7xe8D#
2... b2-b1T 3.Db3-d5 Tb1-b7 4.Dd5-e5 Da1xd4 5.De5xd4 Tb7xf7 6.Sh6xf7 d2-d1D 7.Dd4-f6 Sd8-c6 8.Sf7-h6 Kf8-e8 9.Df6-e6 Sc6-e7 10.De6xe7#
2... Da1-a5 3.Db3-d5 d2-d1D 4.Dd5-g5 Dd1xd4 5.Be4-e5 Dd4xe5 6.Bf4xe5 Sd8xf7 7.Lg8xf7 nebst 8.Dg5-e7/Dg5-g7/Dg5-g8#
2... Da1-a7 3.Db3-b5 Da7xf7 4.Lg8xf7 Sd8xf7 5.Sh6xf7 b2-b1D 6.Db5-d7 Db1-b7 7.Dd7xb7 nebst 8.Db7-e7#
2... Da1-a8 3.Td4-a4 Da8-a7 4.Ta4xa7 b2-b1D 5.Ta7-e7 Db1-a1 6.Be4-e5 Da1-a4 7.Db3xa4 droht 8.Da4-e8/Te7-e8#
2... e2-e1D 3.Db3-b8 Da1-a5 4.Bd6-d7 De1xe4 5.Td4xe4 Da5-c3 6.Te4-e5 Dc3xe5 7.Bf4xe5 nebst 8.Db8-d6/Db8xd8#
1... a2-a1T 2.Td4-d5 Ta1xa3 3.Td5-e5 Sd8-e6 4.Te5xe6 Ta3-a8 5.Bd6-d7 Ta8-b8 6.Te6-e8 Tb8xe8 7.d7xe8D#
James Malcom: This may very well be impossible to C+ with Gustav, but there is an alternative for manual/partial testing by using chess.com's free analysis. When you enter in the position, it completely agrees with the first full 14 moves. It ponders on 15. between which pawn to queen. If you manually enter 15. d8=Q, then the following engine evaluation generally agrees with the solution, and eventually is will find the mate on some point. (2020-11-06)
A.Buchanan: It’s not a matter of style whether you have space after comma in the solution. It’s incorrect syntax for the editor (2020-11-06)
edderiofer: According to this Reddit thread, there is a refutation 1...Qb6 : https://www.reddit.com/r/chess/comments/zslnov/this_2018_awardwinning_study_is_wrong_can_you/
I can confirm that Lichess' analysis agrees; after 1.Qa8 Qb6 Lichess eventually returns a mate for Black for every white move but 2.d8=Q, and after 2...Qb3 (any) Black has mate in twelve. (2022-12-23)
edderiofer: According to this Reddit thread, there is a refutation 1...Qb6 : https://www.reddit.com/r/chess/comments/zslnov/this_2018_awardwinning_study_is_wrong_can_you/
I can confirm that Lichess' analysis agrees; after 1.Qa8 Qb6 Lichess eventually returns a mate for Black for every white move but 2.d8=Q, and after 2...Qb3 (any) Black has mate in twelve. (2022-12-23)
Olaf Jenkner: Gustav confirms that black can mate in 14 moves. (2022-12-23)
James Malcom: I emailed Popov about this, and he suggested Rd5-c5. How does this correction fare? (2023-01-07)
Olaf Jenkner: Now white can mate in 14 moves. There are 3 full length variations:
1. b8=D c3 2. a8=D+ e4 3. Dxa6 c2 4. Dxd3 cxd1=D+ 5. Dxd1 Tc3 6. Dbb1 Kh2 7. h8=D Kh1 8. g8=D Te3 9. Dxh4 g4 10. Dxe4+ fxe4 11. Dgxg4 Te1+ 12. Dxe1 fxe1D+ 13. D4xe1 La7 14. Dg2#
1. ... e4 2. a8=D Da5 3. Dxa5 Txa5 4. Db1 c3 5. d8=D c2 6. Dxd3 Kh2 7. Dd6+ Kh1 8. Dxc2 Ta1 9. g8=D Tb1 10. Ddd3 Txd1+ 11. Dcxd1 Kh2 12. Dxh3+ Kxh3 13. Dxg5 e3 14. Dg2#
1. ... Da5 2. a8=D+ e4 und weiter wie oben (2023-01-13)
comment
A.Buchanan: It’s not a matter of style whether you have space after comma in the solution. It’s incorrect syntax for the editor (2020-11-06)
edderiofer: According to this Reddit thread, there is a refutation 1...Qb6 : https://www.reddit.com/r/chess/comments/zslnov/this_2018_awardwinning_study_is_wrong_can_you/
I can confirm that Lichess' analysis agrees; after 1.Qa8 Qb6 Lichess eventually returns a mate for Black for every white move but 2.d8=Q, and after 2...Qb3 (any) Black has mate in twelve. (2022-12-23)
edderiofer: According to this Reddit thread, there is a refutation 1...Qb6 : https://www.reddit.com/r/chess/comments/zslnov/this_2018_awardwinning_study_is_wrong_can_you/
I can confirm that Lichess' analysis agrees; after 1.Qa8 Qb6 Lichess eventually returns a mate for Black for every white move but 2.d8=Q, and after 2...Qb3 (any) Black has mate in twelve. (2022-12-23)
Olaf Jenkner: Gustav confirms that black can mate in 14 moves. (2022-12-23)
James Malcom: I emailed Popov about this, and he suggested Rd5-c5. How does this correction fare? (2023-01-07)
Olaf Jenkner: Now white can mate in 14 moves. There are 3 full length variations:
1. b8=D c3 2. a8=D+ e4 3. Dxa6 c2 4. Dxd3 cxd1=D+ 5. Dxd1 Tc3 6. Dbb1 Kh2 7. h8=D Kh1 8. g8=D Te3 9. Dxh4 g4 10. Dxe4+ fxe4 11. Dgxg4 Te1+ 12. Dxe1 fxe1D+ 13. D4xe1 La7 14. Dg2#
1. ... e4 2. a8=D Da5 3. Dxa5 Txa5 4. Db1 c3 5. d8=D c2 6. Dxd3 Kh2 7. Dd6+ Kh1 8. Dxc2 Ta1 9. g8=D Tb1 10. Ddd3 Txd1+ 11. Dcxd1 Kh2 12. Dxh3+ Kxh3 13. Dxg5 e3 14. Dg2#
1. ... Da5 2. a8=D+ e4 und weiter wie oben (2023-01-13)
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Keywords: konsekutive Umwandlungen 9 (DDDDDDDsD), Promotion key, under-promotion (s)
Genre: n#
FEN: 5B2/PPPPPPPP/q7/3rppp1/2p4p/3p3n/5p2/3N1Kbk
Input: James Malcom, 2020-11-06
Last update: Olaf Jenkner, 2022-12-23 more...
Genre: n#
FEN: 5B2/PPPPPPPP/q7/3rppp1/2p4p/3p3n/5p2/3N1Kbk
Input: James Malcom, 2020-11-06
Last update: Olaf Jenkner, 2022-12-23 more...
1. hxg8=D! a1=D+ 2. Kh2 Dg1+ 3. Kxg1 b1=D+ 4. Kh2 Dg1+ 5. Kxg1 c1=D+ 6. Kh2 Dg1+ 7. Kxg1 d1=D+ 8. Kh2 Dg1+ 9. Kxg1 e1=D+ 10. Kh2 Dg1+ 11. Kxg1 Sf4 12. f8=D#
My first queening record
Record of 2+5 queen promotions
http://superproblem.ru/archive/probl/N/Malcom-12x-2020.gif
My first queening record
Record of 2+5 queen promotions
http://superproblem.ru/archive/probl/N/Malcom-12x-2020.gif
Keywords: Promotion (Dd), Promotion key, Promotion in the mating move, Superseded by (P1378033), Capture key, Pendulum (K), Promotions to queens, konsekutive Umwandlungen 7 (DdddddD)
Genre: n#
Computer test: a. Baumann: Gustav 4.2a
FEN: 2n3r1/3BkP1P/4Pp2/8/8/6BP/pppppPn1/6Kb
Input: James Malcom, 2021-02-01
Last update: Dieter Berlin, 2023-12-08 more...
Genre: n#
Computer test: a. Baumann: Gustav 4.2a
FEN: 2n3r1/3BkP1P/4Pp2/8/8/6BP/pppppPn1/6Kb
Input: James Malcom, 2021-02-01
Last update: Dieter Berlin, 2023-12-08 more...
1. c8=D 2. Kxd7[+sTa8] 3. bxa8=S=
Keywords: Minimal, Miniature, Circe, Patrol Chess, Promotion key (D), under-promotion in the stalemating move (S)
Genre: Fairies
Computer test: %Popeye FreeBSD-9.1-RELEASE-amd64-64Bit v4.59
FEN: 4K3/kPPr4/8/8/8/8/8/8
Input: Erich Bartel, 2021-05-13
Last update: Rainer Staudte, 2023-01-19 more...
Genre: Fairies
Computer test: %Popeye FreeBSD-9.1-RELEASE-amd64-64Bit v4.59
FEN: 4K3/kPPr4/8/8/8/8/8/8
Input: Erich Bartel, 2021-05-13
Last update: Rainer Staudte, 2023-01-19 more...
1. e8=L! Kxe4 2. Lf7 Kd3 3. Lg6#
2. ... Ke5 3. Df4#
Schwarzer Bauer 12/1927 ergänzt
2. ... Ke5 3. Df4#
Schwarzer Bauer 12/1927 ergänzt
Keywords: Promotion key (L), under-promotion (L), Stalemate avoidance, Minimal, Miniature
Genre: 3#
FEN: 8/4P3/8/8/1K2P1p1/3k2P1/5Q2/8
Input: Rainer Staudte, 2022-09-08
Last update: Rainer Staudte, 2022-09-08 more...
Genre: 3#
FEN: 8/4P3/8/8/1K2P1p1/3k2P1/5Q2/8
Input: Rainer Staudte, 2022-09-08
Last update: Rainer Staudte, 2022-09-08 more...
28 - P1407329
Vladimir V. Kuzmichev
2790 ChessStar 06/05/2021
2. Ehrende Erwähnung, Miniaturen
(5+1)
#4
Vladimir V. Kuzmichev
2790 ChessStar 06/05/2021
2. Ehrende Erwähnung, Miniaturen
(5+1)
#4
1. d8=L! Kf8 2. Ld7 Kf7 3. e6+ Kf8 4. Le7#
1. ... Ke8 2. Le7 Kf7 3. e6+ Ke8 4. Ld7#
1. ... Ke8 2. Le7 Kf7 3. e6+ Ke8 4. Ld7#
Keywords: Promotion key (L), under-promotion (L), Chameleon Echo
Genre: n#
FEN: 2B5/3P1k1K/3P4/4P3/8/8/8/8
Input: Rainer Staudte, 2023-01-19
Last update: Rainer Staudte, 2023-01-19 more...
Genre: n#
FEN: 2B5/3P1k1K/3P4/4P3/8/8/8/8
Input: Rainer Staudte, 2023-01-19
Last update: Rainer Staudte, 2023-01-19 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) 1. ... b8=D+ 2. Kg4+ Df4+ 3. Kh5 Dd2 4. Le3 fxe3 5. Kg4 Dd1 6. Kg3 Dg1#
2) 1. ... b8=T 2. b2+ Txb2 3. d2+ Kxc2 4. d1=S Kd3 5. Se3 Te2 6. Sf5 Te4#
2) 1. ... b8=T 2. b2+ Txb2 3. d2+ Kxc2 4. d1=S Kd3 5. Se3 Te2 6. Sf5 Te4#
Yuri Bilokin: you can see 1.h2 b8=Q+ 2.Kg4+ Qf4+ 3.Kh3 Qe3 4.Bf6 Qxf3#
1.h2 b8=Q+ 2.Kg4+ Qf4+ 3.Kh3 Qe3 4.Be7 Qxf3#
1.h2 b8=Q+ 2.Kg4+ Qf4+ 3.Kh3 Qe3 4.Bd8 Qxf3#
1.Bf6 b8=Q+ 2.Kg4 Qxb3 3.h2 Qd5 4.Kh3 Qxf3# (2024-02-29)
comment
1.h2 b8=Q+ 2.Kg4+ Qf4+ 3.Kh3 Qe3 4.Be7 Qxf3#
1.h2 b8=Q+ 2.Kg4+ Qf4+ 3.Kh3 Qe3 4.Bd8 Qxf3#
1.Bf6 b8=Q+ 2.Kg4 Qxb3 3.h2 Qd5 4.Kh3 Qxf3# (2024-02-29)
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Keywords: Checking key (in 1), Promotion key (in 1), under-promotion key (in 2), under-promotion (ts in 2), konsekutive Umwandlungen 2 (ts in 2), bi-coloured Bristol (in 1), Cross check (in 1), Discovered check (in 1), selfpinning (in 1), Unpinning (in 1), Switchback (k in 1), Model mate (in 1), Exchange of Promotions
Genre: h#
FEN: 5n1n/1P6/8/6b1/5k1p/pppp1p1p/2p2P2/2K5
Input: Gunter Jordan, 2023-04-10
Last update: Felber, Volker, 2023-10-15 more...
Genre: h#
FEN: 5n1n/1P6/8/6b1/5k1p/pppp1p1p/2p2P2/2K5
Input: Gunter Jordan, 2023-04-10
Last update: Felber, Volker, 2023-10-15 more...
1. e8=L+? Df7 2. Df5+ Kh6 3. Dh7+ Dxh7#
1. ... Kf6!
1. e8=D+! Df7 2. Df5+ Kh6 3. Dh7+ Dxh7#
1. ... Kf6 2. Dh6+ Dg6 3. Dg7+ Dxg7#
1. ... Kf6!
1. e8=D+! Df7 2. Df5+ Kh6 3. Dh7+ Dxh7#
1. ... Kf6 2. Dh6+ Dg6 3. Dg7+ Dxg7#
Keywords: Exchange of Promotions (L-D), Miniature, Promotion key, Checking key, Minimal (d)
Genre: s#
FEN: 7K/4P3/6k1/4Rq2/5QP1/8/8/8
Input: Rainer Staudte, 2023-04-28
Last update: Gunter Jordan, 2023-04-28 more...
Genre: s#
FEN: 7K/4P3/6k1/4Rq2/5QP1/8/8/8
Input: Rainer Staudte, 2023-04-28
Last update: Gunter Jordan, 2023-04-28 more...
1. g8=D! d3 2. Dxf6+ Kxf6 3. Dg7#
1. ... e3 2. Dxe6+ Kxe6 3. De8#
1. ... f3 2. Dxf6+ Kxf6 3. Dg7#
2. ... Kf4 3. Dgg5#
1. ... e3 2. Dxe6+ Kxe6 3. De8#
1. ... f3 2. Dxf6+ Kxf6 3. Dg7#
2. ... Kf4 3. Dgg5#
Keywords: Opferminimal, Drag-in sacrifice (D,D,D), Opferhäufung, Skittles setup, Promotion key
Genre: 3#
FEN: 7K/6P1/3pppQ1/3pkp2/3ppp2/8/8/8
Input: Rainer Staudte, 2023-05-06
Last update: Rainer Staudte, 2023-05-06 more...
Genre: 3#
FEN: 7K/6P1/3pppQ1/3pkp2/3ppp2/8/8/8
Input: Rainer Staudte, 2023-05-06
Last update: Rainer Staudte, 2023-05-06 more...
1. h8=D! droht 2. De5#
1. ... d6 2. d5#
1. ... Ld6 2. Da8#
1. ... Lf6 2. Dh7#
1. ... f6 2. Dh4#
1. ... d6 2. d5#
1. ... Ld6 2. Da8#
1. ... Lf6 2. Dh7#
1. ... f6 2. Dh4#
Diagrammzusatz in 'Die Welt am Abend (Essen)': "Verbesserung (nach J. Scheel)" [s. Pxxxxxxx]
SCHRECKE: C+, popeye 4.87 (2023-05-11)
comment
SCHRECKE: C+, popeye 4.87 (2023-05-11)
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Keywords: Promotion key (D)
Genre: 2#
FEN: 8/3pbp1P/8/8/R2Pk3/4N2N/4K3/8
Reprints: 11 Die Welt am Abend (Essen) 27/09/1928
Input: Mario Richter, 2023-05-11
Last update: Mario Richter, 2023-05-11 more...
Genre: 2#
FEN: 8/3pbp1P/8/8/R2Pk3/4N2N/4K3/8
Reprints: 11 Die Welt am Abend (Essen) 27/09/1928
Input: Mario Richter, 2023-05-11
Last update: Mario Richter, 2023-05-11 more...
1. g8=S+! Txg8 2. Lg7+ Txg7 3. Th8+ Th7 4. Dg4 Txh8 5. Dg5+ Kh7 6. f8=S+ Txf8#
Henrik Juel: Popeye 4.61 with 'opt non 0 1' found no flaws (2023-06-08)
SCHRECKE: C+, Gustav 4.2c, Brute Force (2023-06-08)
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SCHRECKE: C+, Gustav 4.2c, Brute Force (2023-06-08)
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Keywords: konsekutive Umwandlungen 2 (SS), Promotion key (S), Minimal
Genre: s#
FEN: 4Rr1B/4NPP1/4PK1k/4PQ2/8/8/8/8
Input: Rainer Staudte, 2023-06-08
Last update: Rainer Staudte, 2023-06-08 more...
Genre: s#
FEN: 4Rr1B/4NPP1/4PK1k/4PQ2/8/8/8/8
Input: Rainer Staudte, 2023-06-08
Last update: Rainer Staudte, 2023-06-08 more...
udo.de: steingetreu wiederholt: A. Heimes, Aachener Anzeiger, 23.12. 1937, Nr. 1082 (2024-04-05)
more ...
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more ...
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Keywords: under-promotion (S), Promotion key (S), Flight taking, Ideal mate, Minimal (b), Miniature, Echomatt
Genre: 2#
Computer test: Juel: Popeye 4.61
FEN: 8/3P4/3p4/3k4/8/3K4/3Q4/8
Input: Rainer Staudte, 2023-07-25
Last update: Dieter Berlin, 2024-04-05 more...
Genre: 2#
Computer test: Juel: Popeye 4.61
FEN: 8/3P4/3p4/3k4/8/3K4/3Q4/8
Input: Rainer Staudte, 2023-07-25
Last update: Dieter Berlin, 2024-04-05 more...
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)
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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...
1. g8=D! Ke4 2. Dg4+ Kd5 3. Dc4+ Kd6 4. Ta6+ Kd7 5. Da4+ Tb5 6. Dg4+ Tf5 7. Ta8 Ke6 8. Tf8 Kd7,Ke6~ 9. Td8+ Ke6 10. Tc6+ Kf7 11. Dh5+ Txh5#
Keywords: Minimal (t), Oneliner, Symmetrical position, Promotion (D), Promotion key, Asymmetrical solution, Corner mate, Model mate, Queen sacrifice, Antiphönix
Genre: s#
FEN: 7K/6P1/5B2/4r3/3k4/2R5/1P6/R7
Input: Felber, Volker, 2023-12-14
Last update: Gunter Jordan, 2023-12-14 more...
Genre: s#
FEN: 7K/6P1/5B2/4r3/3k4/2R5/1P6/R7
Input: Felber, Volker, 2023-12-14
Last update: Gunter Jordan, 2023-12-14 more...
1. c8=D? Ke5+! 2. Ke8 Dd5 3. Dc3+ Kd6! 4. Df6+ Kc7! 5. Df4+ Kc8 6. Kf8 Dc5! 7. Kf7 Dh5+! 8. Kf8
6. Dg4+ Kc7! 5. Kf8 Dc5!
3. Kf8 Df3+! oder
2. ... Kf6 3. Dc6+,Da6+ Kg7!
1. e8=D! Kc5+ 2. Kc8! Dd5 3. De3+! Kd6 4. Db6+ Ke7 5. Db4+ Ke8 6. Kb8 De5 7. Kb7 Dd5+ 8. Kb6 De6+ 9. Ka7! Kd7 10. Db7! Da2+ 11. Kb8! Dh2 12. Dd5+ gewinnt, zum Beispiel Ke7 13. Dd4 Dg3 14. Dc5+ Ke8 15. Kb7 Dg7 16. Db5+ Kf8 17. Dd5 Db2+ 18. Kc6 Ke7 19. Dc5+ Kf7 20. c8=D
2. ... Dc3 3. Dg8
2. ... Kb6 3. De6+ Ka7 4. Db3,Dc4 Dg2 5. Da4+ Kb6 6. Dd4+ Kc6 7. Kb8 Dh2 8. Dc3+ Kb5 9. Db3+ Ka5 10. Db7 Ka4 11. Ka8
6. ... Ka6 7. Kd7 Dh3+ 8. Kd8 Kb7 9. Db4+
4. ... Ka6 5. Db7+ Ka5 6. Kb8 Df4 7. Ka8
6. Dg4+ Kc7! 5. Kf8 Dc5!
3. Kf8 Df3+! oder
2. ... Kf6 3. Dc6+,Da6+ Kg7!
1. e8=D! Kc5+ 2. Kc8! Dd5 3. De3+! Kd6 4. Db6+ Ke7 5. Db4+ Ke8 6. Kb8 De5 7. Kb7 Dd5+ 8. Kb6 De6+ 9. Ka7! Kd7 10. Db7! Da2+ 11. Kb8! Dh2 12. Dd5+ gewinnt, zum Beispiel Ke7 13. Dd4 Dg3 14. Dc5+ Ke8 15. Kb7 Dg7 16. Db5+ Kf8 17. Dd5 Db2+ 18. Kc6 Ke7 19. Dc5+ Kf7 20. c8=D
2. ... Dc3 3. Dg8
2. ... Kb6 3. De6+ Ka7 4. Db3,Dc4 Dg2 5. Da4+ Kb6 6. Dd4+ Kc6 7. Kb8 Dh2 8. Dc3+ Kb5 9. Db3+ Ka5 10. Db7 Ka4 11. Ka8
6. ... Ka6 7. Kd7 Dh3+ 8. Kd8 Kb7 9. Db4+
4. ... Ka6 5. Db7+ Ka5 6. Kb8 Df4 7. Ka8
Anton Baumann: 15.Ka7 führt etwas schneller zur 2.Dame:
15.Ka7 Dg7 16.Db5+ Kf8 17.Db8+ Kf7 18.c8=D +_ (2024-01-09)
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15.Ka7 Dg7 16.Db5+ Kf8 17.Db8+ Kf7 18.c8=D +_ (2024-01-09)
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Keywords: Symmetrical position, Asymmetrical solution, Minimal (d), Miniature, Promotion key, Promotion (D), Discovered check
Genre: Studies
FEN: 8/2PKP3/8/3k4/8/8/3q4/8
Input: Rainer Staudte, 2024-01-08
Last update: Rainer Staudte, 2024-01-12 more...
Genre: Studies
FEN: 8/2PKP3/8/3k4/8/8/3q4/8
Input: Rainer Staudte, 2024-01-08
Last update: Rainer Staudte, 2024-01-12 more...
a) 1. ... c3 2. Lg1 c4 3. f2 c5 4. f1=T c6 5. Tf8 c7 6. Tb8 c8=D 7. Sd4 Da6#
b) 1. ... c8=D+ 2. Db8 Dd8 3. Lg3 Kg1 4. Lc7 Kf2 5. Kb7 Ke3 6. Kc6 Ke4 7. Db6 Dd5#
b) 1. ... c8=D+ 2. Db8 Dd8 3. Lg3 Kg1 4. Lc7 Kf2 5. Kb7 Ke3 6. Kc6 Ke4 7. Db6 Dd5#
Yuri Bilokin: you can see a) 1.Bg1 c4 2.f2 c5 3.f1=R c6 4.Rf8 c7 5.Rb8 c8=Q 6.Sd4 Qa6#
1.Bg1 c3 2.f2 c4 3.f1=R c5 4.Rf7 c6 5.Ra7 c7 6.Sf4 c8=Q#
1.Bg1 c3 2.f2 c4 3.f1=R c5 4.Rf7 c6 5.Ra7 c7 6.Qe1 c8=Q#
1.Bg1 c3 2.f2 c4 3.f1=R c5 4.Rf7 c6 5.Ra7 c7 6.Qf2 c8=Q#
b) 1.Qg5 Kxh2 2.Qc5 Kh3 3.Kb7 Kg4 4.Kc6 c8=Q+ 5.Kd5 Kf5 6.Bd4 Qxe6#
1.Qg5 Kxh2 2.Kb7 Kh3 3.Qc5 Kg4 4.Kc6 c8=Q+ 5.Kd5 Kf5 6.Bd4 Qxe6#
1.Qg7 Kxh2 2.Kb7 Kh3 3.Kc6 c8=Q+ 4.Qc7 Kg4 5.Bc5 Kf5 6.Kd6 Qxe6#
1.Qg7 Kxh2 2.Kb7 Kh3 3.Kc6 c8=Q+ 4.Qc7 Kg4 5.Kd6 Kf5 6.Bc5 Qxe6# (2024-01-30)
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1.Bg1 c3 2.f2 c4 3.f1=R c5 4.Rf7 c6 5.Ra7 c7 6.Sf4 c8=Q#
1.Bg1 c3 2.f2 c4 3.f1=R c5 4.Rf7 c6 5.Ra7 c7 6.Qe1 c8=Q#
1.Bg1 c3 2.f2 c4 3.f1=R c5 4.Rf7 c6 5.Ra7 c7 6.Qf2 c8=Q#
b) 1.Qg5 Kxh2 2.Qc5 Kh3 3.Kb7 Kg4 4.Kc6 c8=Q+ 5.Kd5 Kf5 6.Bd4 Qxe6#
1.Qg5 Kxh2 2.Kb7 Kh3 3.Qc5 Kg4 4.Kc6 c8=Q+ 5.Kd5 Kf5 6.Bd4 Qxe6#
1.Qg7 Kxh2 2.Kb7 Kh3 3.Kc6 c8=Q+ 4.Qc7 Kg4 5.Bc5 Kf5 6.Kd6 Qxe6#
1.Qg7 Kxh2 2.Kb7 Kh3 3.Kc6 c8=Q+ 4.Qc7 Kg4 5.Kd6 Kf5 6.Bc5 Qxe6# (2024-01-30)
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Keywords: Corner mate (in a), Epaulettenmatt (in b), Excelsior white (in a), Remote selfblock (in b), konsekutive Umwandlungen 2 (tD in a), Line closing (in a), Model mate, Checking key (in b), Selfblock, Promotion (D), Promotion key (in b), under-promotion (t in a), Minimal
Genre: h#
Computer test: Popeye Windows-64Bit v4.85 (4096 KB)
FEN: k7/8/4n3/8/8/5pq1/2P2b1n/3b3K
Input: Gunter Jordan, 2024-01-11
Last update: Gunter Jordan, 2024-01-11 more...
Genre: h#
Computer test: Popeye Windows-64Bit v4.85 (4096 KB)
FEN: k7/8/4n3/8/8/5pq1/2P2b1n/3b3K
Input: Gunter Jordan, 2024-01-11
Last update: Gunter Jordan, 2024-01-11 more...
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The problems of this query have been registered by the following contributors:
Frank Müller (4)Zuncke/Bruder (7)
Felber, Volker (7)
Gunter Jordan (4)
Rainer Staudte (11)
Mario Richter (2)
James Malcom (3)
Erich Bartel (1)
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)
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