Die Schwalbe

3 problem(s) found in 1127 milliseconds (displaying 3 problem(s)). [COMMENTDATE>=20220810 AND G='Retro' AND S='Mat Plus'] [download as LaTeX]

1 - P0003817
Jean Oudot
Nation Belge 1956
P0003817
(14+12) C+
#2
1. cxd6ep
play all play one stop play next play all
paul: Since the wB couldnt leave c1, the captured piece on b6 is the promoted wPh2. If last black move was f7-f5, then h-Pawn captured four pieces to promote on d8, among which bRh8, impossible. Thus, the h-Pawn could only have been promoted from f7 and therefore d7-d5 remains as the last move. (2011-07-02)
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comment
Keywords: En passant as key
Genre: Retro, 2#
Computer test: C+ Popeye 4.61
FEN: qrRNkb2/PpQ1p1pp/1pp1R3/2PpKpP1/6N1/7B/1P1PPP2/8
Reprints: RA15 diagrammes 15 06/1975
(51) Mat Plus 12 10-12/2009
Input: Gerd Wilts, 1995-06-03
Last update: A.Buchanan, 2022-11-27 more...
2 - P1084837
Roger Powell
The Problemist 1976
P1084837
(2+5)
-1, dann h#2
Rex Multiplex
2 Lösungen
R: 1. ... f2xDg1=K, dann 1. f1=L Dd4 2. Lc4 Db2#
R: 1. ... h2xDg1=K, dann 1. Ka1 Db6+ 2. Kba2 Db2#
play all play one stop play next play all
Arnold Beine: Die erste Lösung geht nicht, weil am Ende der sKa3 noch das Fluchtfeld b4 hat.
Korrekturvorschlag: +sBb4 (dann geht nur die 1. Lösung) und als Zwilling "b) -sBb4" (dann geht nur die 2. Lösung) (2022-08-28)
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comment
Keywords: Help retractor, Rex Multiplex
Genre: Retro, Fairies
FEN: 8/8/8/8/p7/kk6/k5P1/2K3k1
Reprints: (1) Mat Plus 09/10 01-06/2009
Input: Gerd Wilts, 2009-05-30
Last update: James Malcom, 2020-10-07 more...
3 - P1107661
M. Leclercq
L'Echiquier de Paris 1953
G. Authier gewidmet
P1107661
(10+4)
#2
1. dxe6ep
play all play one stop play next play all
Henrik Juel: C+ Popeye 4.61 and very simple analysis (2022-11-16)
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comment
Keywords: En passant as key
Genre: Retro
FEN: 5kn1/5p2/3N1PRP/1B1PpKB1/4RN2/8/8/8
Reprints: (10) Mat Plus 12 10-12/2009
Input: Gerd Wilts, 2010-06-13
Last update: Rainer Staudte, 2022-11-16 more...
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The problems of this query have been registered by the following contributors:

Gerd Wilts (3)