16 problem(s) found in 2835 milliseconds (displaying 16 problem(s)). [COMMENTDATE>=20200919 AND NOT K='Hilfsrückzüger' AND G='n#' AND K='Kein letzter Zug von Schwarz'] [download as LaTeX]
Schwarz hat keinen letzten Zug.
1. ... b5! 2. La4! bxa4 3. Kc1 a3 4. Sc2+ Ka2 5. Sd4 Ka1 6. Kc2 Ka2 7. Se2 Ka1 8. Sc1 a2 9. Sb3#
1. ... b5! 2. La4! bxa4 3. Kc1 a3 4. Sc2+ Ka2 5. Sd4 Ka1 6. Kc2 Ka2 7. Se2 Ka1 8. Sc1 a2 9. Sb3#
Keywords: No legal last move for Black
Genre: Retro, n#
Computer test: C+ Gustav 4.1d
FEN: 8/1p6/8/8/1N6/1B6/2K5/k7
Input: Gerd Wilts, 2002-05-05
Last update: A.Buchanan, 2020-11-18 more...
Genre: Retro, n#
Computer test: C+ Gustav 4.1d
FEN: 8/1p6/8/8/1N6/1B6/2K5/k7
Input: Gerd Wilts, 2002-05-05
Last update: A.Buchanan, 2020-11-18 more...
1. ... gxh3ep 2. 0-0-0#! (not 2.Sf3#?,Bh2#?)
to force
R: 1. h2-h4! h3xSg2 (not 1. Kd1-e1? Kf1-g1 2. Lf3-e2# )
Diagram position is retropat so Article 15 give Black the move. Then White might have last move R: 1. h2-h4 or 1. Kd1-e1. To avoid stalemate in the diagram position, White must castle to demonstrate under AP the legality of 0. gxh3ep. So 1. 0-0-0#! not 1. Sf3#?,Bh2#?
to force
R: 1. h2-h4! h3xSg2 (not 1. Kd1-e1? Kf1-g1 2. Lf3-e2# )
Diagram position is retropat so Article 15 give Black the move. Then White might have last move R: 1. h2-h4 or 1. Kd1-e1. To avoid stalemate in the diagram position, White must castle to demonstrate under AP the legality of 0. gxh3ep. So 1. 0-0-0#! not 1. Sf3#?,Bh2#?
VL: Solution. 1.0-0-0#/Bh2#?? - B. is on move.
0...g*h3 e.p. 1.0-0-0#! (1.Bh2#/Sf3#?? - illegal):
W. forces B. to capture e.p. and legalizes this
possibility a posteriori.
W.Ps took 11: b*c*d*e*f*g, c*d*e*f, e*f*g and g*h.
11+5=16, hence b.Pa7 was also captured among them.
Thus it took once: 1+1(h*g)+14=16. Ph3 took on g2
when w.P stood on h2. No last W's move could be a
capture: e5 and f4 are occupied by w.pieces. Qf4
prevents from Ph3-h4 and Kh2-g1 before that. b.Ps
are blocked from above. Therefore, in his last move,
W. could retro-release B. only in two ways: Ph2-h4
with Ph3*Sg2 before that, or Kd1-e1 with Kf1-g1
and Bf3-e2+ before that. Thus, W. may castle, and
castling AP-legalizes ep (2004-12-09)
A.Buchanan: Article 15 (not AP Type Keym) drives this elegant problem, with usual AP Type Petrovic for ep/castling. (2022-02-16)
A.Buchanan: Have added genre as n#, even though n=1 here, because it's important that this is a #1 rather than a h#0.5, as they behave differently under Article 15. (2022-02-17)
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0...g*h3 e.p. 1.0-0-0#! (1.Bh2#/Sf3#?? - illegal):
W. forces B. to capture e.p. and legalizes this
possibility a posteriori.
W.Ps took 11: b*c*d*e*f*g, c*d*e*f, e*f*g and g*h.
11+5=16, hence b.Pa7 was also captured among them.
Thus it took once: 1+1(h*g)+14=16. Ph3 took on g2
when w.P stood on h2. No last W's move could be a
capture: e5 and f4 are occupied by w.pieces. Qf4
prevents from Ph3-h4 and Kh2-g1 before that. b.Ps
are blocked from above. Therefore, in his last move,
W. could retro-release B. only in two ways: Ph2-h4
with Ph3*Sg2 before that, or Kd1-e1 with Kf1-g1
and Bf3-e2+ before that. Thus, W. may castle, and
castling AP-legalizes ep (2004-12-09)
A.Buchanan: Article 15 (not AP Type Keym) drives this elegant problem, with usual AP Type Petrovic for ep/castling. (2022-02-16)
A.Buchanan: Have added genre as n#, even though n=1 here, because it's important that this is a #1 rather than a h#0.5, as they behave differently under Article 15. (2022-02-17)
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Keywords: a posteriori (AP) (Type Petrovic), En passant as key, No legal last move for Black, Castling (wk)
Genre: Retro, n#
FEN: 8/6P1/5P2/4NpPP/5QpP/P5B1/3PBPp1/R3K1kb
Reprints: Die Schwalbe 228 12/2007
Input: Gerd Wilts, 2004-08-13
Last update: James Malcom, 2022-07-05 more...
Genre: Retro, n#
FEN: 8/6P1/5P2/4NpPP/5QpP/P5B1/3PBPp1/R3K1kb
Reprints: Die Schwalbe 228 12/2007
Input: Gerd Wilts, 2004-08-13
Last update: James Malcom, 2022-07-05 more...
0. ... Kxd7 1. c8=D+! Kxc8 2. Lb8 Kxb8 3. Tc5 Ka8 4. Tc8#
0. ... Kxd5 1. Lf4+! Ke6 2. c8=D Kf5 3. Tf7+ Kg6 4. Df5#
2. ... Kf6 3. Df8+ Kg6 4. Df7#
3. ... Ke6 4. Df7#,Td6#
1. ... Kc5 2. Ld2,Ka5 droht 3. c8=D#,c8=T#
Dual 1. c8=D! droht 2. Dc4#
1. ... Ke6 2. Lf4 Kf5 3. Tf7+ Kg6 4. Df5#
2. ... Kf6 3. Df8+ Ke6 4. Df7#,Td6#
3. ... Kg6 4. Df7#
oder 2. Td8+ Kf7,Kf6 3. Dg4 ... 4. Tf8#
bzw. 2. De8+ Kf6 3. Dh5 Ke6 4. Df7#
2. ... Kf5 3. Tg7 droht 4. Dg6#,Df7#,De5#
Cook: Duale nach 1. ... Kxd5 2. Lf4 und 2. c8=D
0. ... Kxd5 1. Lf4+! Ke6 2. c8=D Kf5 3. Tf7+ Kg6 4. Df5#
2. ... Kf6 3. Df8+ Kg6 4. Df7#
3. ... Ke6 4. Df7#,Td6#
1. ... Kc5 2. Ld2,Ka5 droht 3. c8=D#,c8=T#
Dual 1. c8=D! droht 2. Dc4#
1. ... Ke6 2. Lf4 Kf5 3. Tf7+ Kg6 4. Df5#
2. ... Kf6 3. Df8+ Ke6 4. Df7#,Td6#
3. ... Kg6 4. Df7#
oder 2. Td8+ Kf7,Kf6 3. Dg4 ... 4. Tf8#
bzw. 2. De8+ Kf6 3. Dh5 Ke6 4. Df7#
2. ... Kf5 3. Tg7 droht 4. Dg6#,Df7#,De5#
Cook: Duale nach 1. ... Kxd5 2. Lf4 und 2. c8=D
E7-5 RA4
A.Buchanan: This reminds me of Plato's two chariot horses: one divine, the other a recalcitrant nag (2021-10-10)
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A.Buchanan: This reminds me of Plato's two chariot horses: one divine, the other a recalcitrant nag (2021-10-10)
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Keywords: Miniature Collection (0342661), No legal last move for Black, Miniature
Genre: n#, Retro
Computer test: C- Popeye v4.87
FEN: 8/2PR4/K1kB4/3R4/8/3P4/8/8
Input: Zuncke/Bruder, 2010-09-11
Last update: A.Buchanan, 2021-10-12 more...
Genre: n#, Retro
Computer test: C- Popeye v4.87
FEN: 8/2PR4/K1kB4/3R4/8/3P4/8/8
Input: Zuncke/Bruder, 2010-09-11
Last update: A.Buchanan, 2021-10-12 more...
1. ... Txb2 2. Lxb2#
1. Txa2#? 1. Tb1#?
1. Txa2#? 1. Tb1#?
Keywords: Miniature Collection (0321214), No legal last move for Black, Aristocrat, Minimal, Miniature
Genre: n#, Retro
Computer test: C+ Popeye 4.61 and analysis
FEN: 8/8/8/8/8/B1N5/rR6/k1K5
Input: Zuncke/Bruder, 2010-09-11
Last update: A.Buchanan, 2023-12-05 more...
Genre: n#, Retro
Computer test: C+ Popeye 4.61 and analysis
FEN: 8/8/8/8/8/B1N5/rR6/k1K5
Input: Zuncke/Bruder, 2010-09-11
Last update: A.Buchanan, 2023-12-05 more...
1. ... Kxa7 2. Kc7 Ka8 3. b5 Ka7 4. b6 Ka8 5. b7 Ka7 6. Sc6+ Ka6 7. b8=S#
1. ... Kxb8 2. Kb6 Ka8 3. c4 Kb8 4. c5 Ka8 5. c6 Kb8 6. c7+ Ka8 7. c8=D/T#
1. ... Kxb8 2. Kb6 Ka8 3. c4 Kb8 4. c5 Ka8 5. c6 Kb8 6. c7+ Ka8 7. c8=D/T#
Keywords: Miniature Collection (0340365), No legal last move for Black, Excelsior (S,D/T), Miniature
Genre: n#, Retro
Computer test: A. Baumann: Gustav 4.2a
FEN: kN6/N7/2K5/8/PP6/8/2P5/8
Input: Zuncke/Bruder, 2010-09-11
Last update: A.Buchanan, 2024-04-05 more...
Genre: n#, Retro
Computer test: A. Baumann: Gustav 4.2a
FEN: kN6/N7/2K5/8/PP6/8/2P5/8
Input: Zuncke/Bruder, 2010-09-11
Last update: A.Buchanan, 2024-04-05 more...
1. ... Kxe8 2. Dg8#
1. ... Kxc8 2. Da8#
1. ... Kxc8 2. Da8#
Keywords: Miniature Collection (0321180), Aristocrat, Miniature, No legal last move for Black
Genre: n#, Retro
Computer test: Juel: C+ Popeye 4.61
FEN: 2NkN3/8/3K4/3Q4/8/8/8/8
Input: Zuncke/Bruder, 2010-09-11
Last update: Dieter Berlin, 2023-08-15 more...
Genre: n#, Retro
Computer test: Juel: C+ Popeye 4.61
FEN: 2NkN3/8/3K4/3Q4/8/8/8/8
Input: Zuncke/Bruder, 2010-09-11
Last update: Dieter Berlin, 2023-08-15 more...
1. ... Txh7 2. Tf8#
1. Tg7#? 1. Sf6#?
1. Tg7#? 1. Sf6#?
RA1
Henrik Juel: C+ Popeye 4.61 and analysis
not 1.Tg7? because Black has the move (2022-07-19)
comment
Henrik Juel: C+ Popeye 4.61 and analysis
not 1.Tg7? because Black has the move (2022-07-19)
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Keywords: Miniature Collection (0321213), No legal last move for Black, Aristocrat, Minimal, Miniature
Genre: n#, Retro
FEN: 6kr/5R1N/4K2B/8/8/8/8/8
Input: Zuncke/Bruder, 2010-09-12
Last update: A.Buchanan, 2023-12-04 more...
Genre: n#, Retro
FEN: 6kr/5R1N/4K2B/8/8/8/8/8
Input: Zuncke/Bruder, 2010-09-12
Last update: A.Buchanan, 2023-12-04 more...
1. ... Sxg3+ 2. Dxg3#
1. ... Sxf2 2. Dg2#
1. ... Kxh2 2. Dg2#/Dh5#
1. Dg2#?,Dh5#? but BTM
1. ... Sxf2 2. Dg2#
1. ... Kxh2 2. Dg2#/Dh5#
1. Dg2#?,Dh5#? but BTM
Keywords: Miniature Collection (0321215), No legal last move for Black, Minimal, Miniature
Genre: n#, Retro
Computer test: C+ Popeye 4.61 and analysis
FEN: 8/8/8/8/8/5QPk/5B1N/5K1n
Input: Zuncke/Bruder, 2010-09-12
Last update: A.Buchanan, 2023-12-05 more...
Genre: n#, Retro
Computer test: C+ Popeye 4.61 and analysis
FEN: 8/8/8/8/8/5QPk/5B1N/5K1n
Input: Zuncke/Bruder, 2010-09-12
Last update: A.Buchanan, 2023-12-05 more...
1. ... Dg7#
Keywords: Miniature Collection (0321222), Miniature, No legal last move for Black
Genre: n#, Retro
FEN: 6Bk/3p3q/5K2/5Q1P/8/8/8/8
Input: Zuncke/Bruder, 2010-09-12
Last update: Rainer Staudte, 2022-02-25 more...
Genre: n#, Retro
FEN: 6Bk/3p3q/5K2/5Q1P/8/8/8/8
Input: Zuncke/Bruder, 2010-09-12
Last update: Rainer Staudte, 2022-02-25 more...
1. ... Kxg8 2. Se6 hxg5 3. Sf6+ Kh8 4. Sd8 g4 5. Sf7#
10 keys if it were WTM
10 keys if it were WTM
Keywords: Miniature Collection (0341703), No legal last move for Black, Minimal, Miniature
Genre: n#, Retro
Computer test: C+ Popeye 4.61 and analysis
FEN: 6Bk/6N1/6Kp/6PN/8/8/8/8
Input: Zuncke/Bruder, 2010-09-12
Last update: A.Buchanan, 2023-12-05 more...
Genre: n#, Retro
Computer test: C+ Popeye 4.61 and analysis
FEN: 6Bk/6N1/6Kp/6PN/8/8/8/8
Input: Zuncke/Bruder, 2010-09-12
Last update: A.Buchanan, 2023-12-05 more...
1. ... Kxg4 2. Kxg6! Kxg3 3. Th5 Kg2 4. Tg5+ Kh2,Kh1,Kh3 5. Th7#
Keywords: Miniature Collection (0344445), No legal last move for Black, Symmetrical position, Minimal, Miniature
Genre: n#, Retro
FEN: 8/5RKR/6p1/6k1/6P1/6P1/8/8
Reprints: 69 Jitvesha schachova Miniatjura [Davydjuk] 1992
Input: Zuncke/Bruder, 2010-09-12
Last update: James Malcom, 2021-01-23 more...
Genre: n#, Retro
FEN: 8/5RKR/6p1/6k1/6P1/6P1/8/8
Reprints: 69 Jitvesha schachova Miniatjura [Davydjuk] 1992
Input: Zuncke/Bruder, 2010-09-12
Last update: James Malcom, 2021-01-23 more...
1. ... Kxb1 h4 Ka1 2. h5 Kb1 3. h6 Ka1 4. h7 Kb1 5. h8=T Ka1 6. Th1#
Schwarz hat keinen letzten Zug, beginnt daher.
Schwarz hat keinen letzten Zug, beginnt daher.
Keywords: Miniature Collection (0343095), Rex solus (s), No legal last move for Black, Excelsior, under-promotion (T), Miniature
Genre: n#, Retro
Computer test: A. Baumann: Gustav 4.2a
FEN: 6K1/8/8/8/1N6/B7/7P/kB6
Input: Zuncke/Bruder, 2010-09-12
Last update: Dieter Berlin, 2024-04-02 more...
Genre: n#, Retro
Computer test: A. Baumann: Gustav 4.2a
FEN: 6K1/8/8/8/1N6/B7/7P/kB6
Input: Zuncke/Bruder, 2010-09-12
Last update: Dieter Berlin, 2024-04-02 more...
1. ... fxg6! 2. Se2 g5 3. Kg3 g4 4. h3 gxh3 5. Kf2 Kh2 6. Sd4 Kh1 7. Sf5 Kh2 8. Se3 Kh1 9. Sf1 h2 10. Sg3#
1. Tf6? Kxg1 2. Txf7 Kh1 3. Tf1# but BTM
1. Tf6? Kxg1 2. Txf7 Kh1 3. Tf1# but BTM
Keywords: Miniature Collection (0344079), No legal last move for Black, Minimal, Miniature
Genre: n#, Retro
FEN: 8/5p2/6R1/8/8/7K/7P/6Nk
Input: Zuncke/Bruder, 2010-09-12
Last update: A.Buchanan, 2023-12-05 more...
Genre: n#, Retro
FEN: 8/5p2/6R1/8/8/7K/7P/6Nk
Input: Zuncke/Bruder, 2010-09-12
Last update: A.Buchanan, 2023-12-05 more...
14 - P1371205
Michael Schlosser
1906 Gaudium 215 24/12/2019
Weihnachts- und Neujahrsgruß an alle Gaudium-Leser
(4+2) C+
Matt in wieviel Zügen?
Michael Schlosser
1906 Gaudium 215 24/12/2019
Weihnachts- und Neujahrsgruß an alle Gaudium-Leser
(4+2) C+
Matt in wieviel Zügen?
1. ... Kxg8! 2. Ke7 Kh8 3. Sf6 gxf6 4. Kf7 f5 5. g7+ Kh7 6. g8=D+ Kh6 7. Dg6#
1. Sf6? gxf6 2. Kf7 f5 3. g7# ist nur Verführung, da S keinen letzten Zug hat
Mate in 6 not 3
1. Sf6? gxf6 2. Kf7 f5 3. g7# ist nur Verführung, da S keinen letzten Zug hat
Mate in 6 not 3
A.Buchanan: Nice big gap between the actual and unique retro try solution lengths. (2021-10-12)
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Keywords: No legal last move for Black, Promotion, Miniature, Minimal (b)
Genre: Retro, 3#, n#
Computer test: Popeye 4.61
FEN: 4N1Bk/6p1/4K1P1/8/8/8/8/8
Input: Rainer Staudte, 2019-12-31
Last update: Gunter Jordan, 2022-05-29 more...
Genre: Retro, 3#, n#
Computer test: Popeye 4.61
FEN: 4N1Bk/6p1/4K1P1/8/8/8/8/8
Input: Rainer Staudte, 2019-12-31
Last update: Gunter Jordan, 2022-05-29 more...
Henrik Juel: Apparently there is a #3
1.c4? Kxc2 2.Sc3 Kxd3 3.0-0-0?
But two facts prevent this try
1. Black has no last move, so he has the move
2. wKe1 must have moved, so White cannot castle
The solution is
0... Kxc2 1.Sd2 Kxd3 2.Sc4 Kc2 3.Se3+ Kd3 4.Td1#
C+ Popeye 4.61 (2020-09-29)
comment
1.c4? Kxc2 2.Sc3 Kxd3 3.0-0-0?
But two facts prevent this try
1. Black has no last move, so he has the move
2. wKe1 must have moved, so White cannot castle
The solution is
0... Kxc2 1.Sd2 Kxd3 2.Sc4 Kc2 3.Se3+ Kd3 4.Td1#
C+ Popeye 4.61 (2020-09-29)
comment
Keywords: Rex solus (s), Belen Theme (Anti-), Cant Castler, No legal last move for Black, Capture key
Genre: n#, Retro
Computer test: Popeye 4.61
FEN: 8/8/8/8/8/BPPP1P2/PPB2P2/RNk1KR2
Input: A.Buchanan, 2020-09-29
Last update: Alfred Pfeiffer, 2020-10-08 more...
Genre: n#, Retro
Computer test: Popeye 4.61
FEN: 8/8/8/8/8/BPPP1P2/PPB2P2/RNk1KR2
Input: A.Buchanan, 2020-09-29
Last update: Alfred Pfeiffer, 2020-10-08 more...
1. ... axb4! 2. Sb2 b3 3. Lc6 Ka5 4. Lb5 a6 5. Sc4#
2. ... Ka5 3. Lb7 b3 4. Sc4+ Ka4 5. Lc6#
3. ... a6 4. Lc6 b3 5. Sc4#
1. Sb2? axb4 2. Sc4 b3 3. Kc6 b2 4. Lb7# aber Schwarz am Zug!
2. ... Ka5 3. Lb7 b3 4. Sc4+ Ka4 5. Lc6#
3. ... a6 4. Lc6 b3 5. Sc4#
1. Sb2? axb4 2. Sc4 b3 3. Kc6 b2 4. Lb7# aber Schwarz am Zug!
A.Buchanan: Ideally, I'd like to start the solution count at Black's move zero, but this is not supported by the animation currently. So we start at B1 and finish with W5. The challenge is that then B1 is interpreted as a *defence* to W1 retro try! A workaround is to put the solution B1-W5 *before* the retro try W1-W4. Would also like some "restart" symbol in the animation, to say: ok forget all the history. (2021-04-10)
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Keywords: No legal last move for Black, Miniature
Genre: n#, Retro
Computer test: C+ Popeye 4.61 plus simple retro thinking.
FEN: B7/p7/k7/p1K5/NB6/8/8/8
Input: Rainer Staudte, 2021-04-09
Last update: A.Buchanan, 2021-04-10 more...
Genre: n#, Retro
Computer test: C+ Popeye 4.61 plus simple retro thinking.
FEN: B7/p7/k7/p1K5/NB6/8/8/8
Input: Rainer Staudte, 2021-04-09
Last update: A.Buchanan, 2021-04-10 more...
Show statistic for complete result. Show search result faster by using ids.
https://pdb.dieschwalbe.de/search.jsp?expression=COMMENTDATE%3E%3D20200919+AND+NOT+K%3D%27Hilfsr%C3%BCckz%C3%BCger%27+AND+G%3D%27n%23%27+AND+K%3D%27Kein+letzter+Zug+von+Schwarz%27
The problems of this query have been registered by the following contributors:
Gerd Wilts (2)Zuncke/Bruder (11)
Rainer Staudte (2)
A.Buchanan (1)
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