Die Schwalbe

1 problem(s) found in 1500 milliseconds (displaying 1 problem(s)). [(A = 'Henke' AND PROBID= 'P0534194' ) AND A='Henke, Karl']

1 - P0534194
Karl Henke
1128 Schachmatt 06/1948
(4+3) C+
* 1. ... 0-0-0+ 2. Ke2 Td2#
1. Kc2 Ta2+ 2. Kc1 0-0#
play all play one stop play next play all
VL: When Bl has the move, only one castling is legal. Therefore presently (since 2009), due to Art.16 (3) of the Codex, this diagram, as is, represents a retro-problem (PRA) with NO SOLUTION if O-O is illegal. The genre and the soundness can be recovered by an additional technical wP. (2017-11-25)
VL: Continuation. In reality, the second part of Art.16(3) formally preserves the soundness of problems like this one (without any changes in their positions): namely, in the framework of Retro-Strategy (RS), which justifies the choice of appropriate castling as a part of the solution! However, such a subtle retro-enrichment lies, apparently, beyond the original intention. (2017-12-01)
Keywords: Castling (wb)
Genre: h#
Computer test: Popeye C-Version 3.44 (1024 KB)
Reprints: 3 Die Schwalbe 241, p. 372, 02/2010
Input: Andreas Mokosch, 1997-10-17
Last update: Rainer Staudte, 2019-08-11 more...
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The problems of this query have been registered by the following contributors:

Andreas Mokosch (1)