Die Schwalbe

3 problem(s) found in 1359 milliseconds (displaying 3 problem(s)). [k='unique move' and k='en passant']

1 - P1108934
Werner Keym
Die Schwalbe 2008
P1108934
(12+9)
Einziger Zug?
exf6ep+
play all play one stop play next play all
To understand the task, see the definition for keyword "Unique move?"
With 21 pieces this is the economy record for the en passant capture.
Keywords: Unique move? (BxBep), En passant, Economy record
Genre: Retro
Input: Gerd Wilts, 2010-06-26
Last update: A.Buchanan, 2018-03-07 more...
2 - P1240663
Kari Karhunen
Die Schwalbe 12/2009
P1240663
(11+13)
Einziger Zug?
1. fxg6ep#
play all play one stop play next play all
hans: What’s the problem? Last move of black must have been g7-g5?
without e.p. it’s stalemate R: -1. e5xDd6 Dc6-d6 -2. Kh4-h5 g6-g5+
bCap: cxb5, axb-b1=L, exd-d1=L, hxgxh-h1=L wCap axb6, exd, [D/L/S], (2013-09-16)
Henrik Juel: This is a construction task (with some retro content), and it is given that White has the move; with this knowledge it is easily seen that last move was g7-g5, and the only possible forward move is fxg5ep, which mates Black (2013-09-16)
A.Buchanan: If I remember correctly, in these it isn't given that White has the move. With BTM the position must be pat, so that the stipulation "unique move" only has a solution with WTM. (2013-09-16)
comment
Keywords: Unique move? (BxBep), En passant
Genre: Retro
Input: Gerd Wilts, 2012-06-03
Last update: A.Buchanan, 2015-02-28 more...
3 - P1298394
Andrew Buchanan
PDB Website 28/2/2015
P1298394
(6+5)
Unique next move?
1. bxa6ep
followed by 1. ... bxa6 2. b7 a5 then maybe 3. b8=D/T#
play all play one stop play next play all
Keywords: Unique move? (BxBep), Dead Position, En passant, Economy record, Kindergarten Problem
Genre: Retro
Input: A.Buchanan, 2015-02-28
Last update: A.Buchanan, 2018-10-15 more...
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The problems of this query have been registered by the following contributors:

Gerd Wilts (2)
A.Buchanan (1)