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2 problem(s) found in 5165 milliseconds (displaying 2 problem(s)). [COMMENTDATE>=20200919 AND NOT K='Hilfsrückzüger' AND A='Geissler, Norbert' AND G='h#' AND G='Retro' AND S='The Problemist Supplement'] [download as LaTeX]

1 - P1380195
Norbert Geissler
The Problemist Supplement 2018
after Andrew Buchanan
P1380195
(10+12) C+
h#3
1. ... e3 2. Da5 Df3 3. b6 Dxa8#
play all play one stop play next play all
Numerous retro tries but none distinct
The task here is to maximize the number of necessary units in a homebase h#.
Henrik Juel: 1... e3 2.Da5 Df3 3.b6 Dxa8#
White (not Black) has no last move, so he has the move, and the stipulation is really h#2.5 (2020-09-23)
A.Buchanan: Can shift sBd7 to c7 for an entirely different mate, but alas one of sBg7h7 might be removed without losing soundness. (2020-09-24)
comment
Keywords: Homebase (2), No legal last move for White
Genre: h#, Retro
Computer test: C+ Popeye v4.85 + retro thinking
FEN: r2qk1nr/pp1ppppp/8/8/8/8/1PPPPPP1/2BQKB2
Input: A.Buchanan, 2020-09-23
Last update: A.Buchanan, 2023-12-07 more...
2 - P1380264
Norbert Geissler
3 The Problemist Supplement 154, p. 646, 05/2018
P1380264
(3+7)
h#4
Wie viele Lösungen?
One solution only!
1. Sh6 f4 2. 0-0 f5 3. Kh8 f6 4. Tg8 Txh6#
1. Th7 0-0? 2. Td7 Ta1 3. De7 Txa8 4. Kd8 Txb8# castling illegal
play all play one stop play next play all
The possible second solution 1. Th7 0-0 2. Td7 Ta1 3. De7 Txa8 4. Kd8 Txb8#
is illegal as white castling is not allowed (last move of white was made by King or Rook)
Henrik Juel: C+ Popeye 4.61 (2020-09-25)
comment
Keywords: Homebase (2), Cant Castler
Genre: h#, Retro
FEN: rn1qk1nr/2p5/8/8/8/8/5P2/4K2R
Input: A.Buchanan, 2020-09-25
Last update: A.Buchanan, 2020-12-11 more...
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The problems of this query have been registered by the following contributors:

A.Buchanan (2)