1 problem(s) found in 910 milliseconds (displaying 1 problem(s)). [PROBID IN 'P1373121'] [download as LaTeX]
1 - P1373121
Ladislav Salai Jr.
Michal Dragoun
2003 PZSzach 03/03/2020
1. Preis
Sektion h#2
(7+9) C+
h#2
4.1...
Ladislav Salai Jr.
Michal Dragoun
2003 PZSzach 03/03/2020
1. Preis
Sektion h#2
(7+9) C+
h#2
4.1...
1) 1. Sd3xe5 a4-a5 2. b6xa5 Sd7-c5#
2) 1. Te6xe5 h5-h6 2. g7xh6 Sd7-f6#
3) 1. Sd3-e1 Lg4-d1 2. Se1-f3 Ld1-c2#
4) 1. Te6-f6 Lg4-h3 2. Tf6-f5 Lh3-g2#
2+2 solutions. In the first pair selfblock, double unguards of mating squares and mates by white knight. In the second pair different selfblocks by the same black pieces with antidual choice of their play - the same first move would create the black battery with disturbing check in the second move, so another square in the first move is needed, and mates by the white bishop. (Authors)
Judge Valery Kopyl 04/2021
2) 1. Te6xe5 h5-h6 2. g7xh6 Sd7-f6#
3) 1. Sd3-e1 Lg4-d1 2. Se1-f3 Ld1-c2#
4) 1. Te6-f6 Lg4-h3 2. Tf6-f5 Lh3-g2#
2+2 solutions. In the first pair selfblock, double unguards of mating squares and mates by white knight. In the second pair different selfblocks by the same black pieces with antidual choice of their play - the same first move would create the black battery with disturbing check in the second move, so another square in the first move is needed, and mates by the white bishop. (Authors)
Judge Valery Kopyl 04/2021
comment
Genre: h#
Computer test: Popeye 4.83
FEN: 1K6/3N2p1/1p2r1p1/1p1pP2P/P3kbB1/3n4/8/6B1
Input: Marcin Banaszek, 2020-03-04
Last update: Marcin Banaszek, 2021-04-26 more...
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The problems of this query have been registered by the following contributors:
Marcin Banaszek (1)