Die Schwalbe

2 problem(s) found in 3578 milliseconds (displaying 2 problem(s)). [COMMENTDATE>=20200919 AND NOT K='Hilfsrückzüger' AND S='Mat Plus Review']

1 - P1181239
Thomas R. Dawson
The Chess Amateur 12/1923
Asymmetrie-Turnier 1924
1. Preis
(15+10) C+
1. gxf6ep+ Kxe8 2. Dg6+ hxg6 3. cxd8=S ... 4. f7+ Ke7 5. Sxg6+ Sxg6#
play all play one stop play next play all
Schwarz hat zuletzt f7-f5 gezogen, da d7-d5 an der retrograden Einsperrung des Lc8 scheitert.
Henrik Juel: C+ Popeye 4.61 after analysis
White is missing one man, so last move was not a pawn capture
White pawns captured all six missing black men, so last move was not d7-d5
Obviously last move was not made by Ke7 or Sd8f8, so last move was f7-f5 legitimizing the ep key (2020-11-02)
Keywords: Asymmetrical solution, En passant as key, Symmetrical position, Promotion (S)
Genre: Retro, s#
Computer test: C+ Popeye 4.61 after analysis
FEN: 1NRnBnRN/1pP1k1Pp/4p3/2PpKpP1/2pPQPp1/8/2P3P1/8
Reprints: 87 Asymmetry 1927
199 Mat Plus Review 01-06/2010
H2 ASymmetrie 2013
Input: Frank Müller, 2010-11-25
Last update: A.Buchanan, 2020-11-03 more...
2 - P1195687
Mirko B. Markovic
Serbian Championship 2003-2006
2. Lob
(9+3) C+
1. f8=T Lxb5 2. Ta8+ La6 3. Se8 Kb5 4. Sd6+ Ka5 5. Sdc4+ Kb5 6. Lb7 Lxb7#
play all play one stop play next play all
SCHRECKE: C+, Gustav 4.1d, Brute Force (2020-09-20)

Genre: s#
FEN: 8/2N2P2/8/kP6/b3B3/1pP5/1N5P/6BK
Reprints: (42) Mat Plus Review 06/2008
Input: Frank Müller, 2011-05-14
Last update: Marcin Banaszek, 2020-09-21 more...
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The problems of this query have been registered by the following contributors:

Frank Müller (2)