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2 problem(s) found in 3194 milliseconds (displaying 2 problem(s)). [COMMENTDATE>=20200919 AND K='Hilfsrückzüger' AND G='3#'] [download as LaTeX]

1 - P1379333
Guus Rol
www.chess.com
P1379333
(10+11)
Take back 1 white move and then #3
b) wTg5 nach d4
c) dann wKe1 nach c1, wTa1 nach d1
c) dann sBh6 nach a7
Henrik Juel: We await the detailed solution with bated breath, Andrew (2020-08-25)
James Malcom: For a), perhaps it’s something stupid -1. bxa6ep to prove that Black can’t castle. Either it’s a solution in one of the parts or it’s a false lead. (2020-08-26)
Mario Richter: Here's my guess:
a) R: 1. Td5xBg5, dann 1. a7!
b) R: b5xa6ep, dann 1. 0-0-0!
c) R: 1. Lg7xBf6, dann 1. Txd7!
d) R: 1. 0-0-0, dann 1. c6! (2020-08-26)
Mario Richter: still waiting for the official solution (2020-09-20)
James Malcom: As am I! (2020-09-20)
comment
Keywords: Help retractor
Genre: 3#, Retro
FEN: 4k2r/2pb1p1r/Pp2pBpp/2P3RP/2p5/8/5PPP/R3K3
Input: A.Buchanan, 2020-08-25
Last update: A.Buchanan, 2020-08-25 more...
2 - P1380127
Nikola Predrag
(32) MatPlus.net Forum 15/8/2019
P1380127
(8+11)
-1(s+w), dann #3?
R: 1. c4xb3ep b2-b4, dann 1. Sc3+ Kc2 2. Dd3+ Kxd3 3. 0-0-0#?!
But castling is illegal! This is because Black's dark squared bishop is a promoted piece and White's king must have moved to let the promotion through.
play all play one stop play next play all
http://matplus.net/start.php?px=1600656376&app=forum&act=posts&tid=2343&fid=xshows&page=1
Henrik Juel: Removing wPh2 might help (2020-09-21)
James Malcom: The illegality of the castling is intentional. (2020-09-21)
A.Buchanan: I guess it is intended as a joke. There are numerous cooks e.g. R: 1. Dh1xDh5 Td6-b6 dann 1. Sb2-d2+! (2020-09-22)
James Malcom: Andrew, the White king is in check from the Black bishop. Ep is the only legal way to resolve it. Your suggestion is illegal. Did you forget to eat breakfast again? :) (2020-09-23)
A.Buchanan: Ha this is just like when I play chess otb - so hard to spot extraordinarily distant black pieces on dark squares :-) (2020-09-23)
James Malcom: Sounds fair enough to me! And the position is legal, not illegal, Andrew. (2020-09-23)
A.Buchanan: I meant "no solution" - and I've classified it as a joke which I think is the composer's intent (2020-09-24)
James Malcom: Quite simply, I agree. (2020-09-24)
Mario Richter: I think the "normal usage" of the keyword "no solution" in the PDB so far is to indicate, that the intended solution fails e.g. because of some hidden defense (which corresponds to the german "unlösbar").
This problem doen't fall into that category! In fact, it has as solution, namely that there is no mate in 3 after the (forced) retractions!
(There are 1064 cooked problems with the keyword "no solution", only 9 "no solution" problems with the label "C+", and for all of the latter either the "no solution" or the "C+" is wrongly attributed.
Perhaps the simplest way to handle the Pedrag-problem is to add "intended" to the KW "no solution". (2020-09-25)
James Malcom: I agree, Mario. It is now doe. (2020-09-25)
A.Buchanan: Yes that's fair. Most jokes follow a template, but this is quite original. (2020-09-25)
more ...
comment
Keywords: Belen Theme, Valladao Task, Help retractor, Castling as mating move, En passant in the retro play, Obvious promotion, Joke, no solution (Intentional), Cant Castler (wg)
Genre: Retro, 3#
FEN: 8/1pppp1p1/1R6/b6q/6N1/rp5Q/p5PP/RNk1K3
Input: James Malcom, 2020-09-21
Last update: Mario Richter, 2020-10-07 more...
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The problems of this query have been registered by the following contributors:

A.Buchanan (1)
James Malcom (1)