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1 problem(s) found in 2623 milliseconds (displaying 1 problem(s)). [COMMENTDATE>=20220810 AND NOT K='Allumwandlung' AND K='Schlagzickzack'] [download as LaTeX]

1 - P1180459
Thomas R. Dawson
903 American Chess Bulletin 12/1913
Holiday Problem
P1180459
(9+12)
s#25
Schlagzickzack
paul: Every black move is unique, so the problem can be partially checked by Jacobi using:
forsyth K1k1s3/5p2/2S5/b7/1ppppppp/7r/PPPPPPP1/8
stipulation u#25
condition Blackcap Zigzag
Sol: 1.Ka7 2.Ka6 3.Kb5 4.Kc5 5.Kd5 6.Ke5 7.Kf5 8.Kg5 9.Kh6 10.Kh7 11.Kg8 12.Kf8 13.Ke7 14.Sd8 Bxd8+ 15.Kf8 16.Kg8 17.Kh7 18.Kh6 19.a4 bxa3 e.p. 20.b4 cxb3 e.p. 21.c4 dxc3 e.p. 22.d4 exd3 e.p. 23.e4 fxe3 e.p. 24.f4 gxf3 e.p. 25.g4 hxg3 e.p.# (2022-08-24)
Henrik Juel: Ka8 needs to go to e7 to avoid KxSd8
Later, White must use double pawn steps to avoid TxPa3 etc. (2022-08-24)
comment
Keywords: Blackcap zigzag
Genre: Fairies
FEN: K1k1n3/5p2/2N5/b7/1ppppppp/7r/PPPPPPP1/8
Input: Frank Müller, 2010-11-16
Last update: Frank Müller, 2010-11-17 more...
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Frank Müller (1)