Chess Puzzle #254856

CHESS PUZZLE, FEN 2b5/bpn1p1p1/p5Qp/rB2B3/3p2qr/P6p/P1P4R/R2NK1kN w - -

Added by:	fredkohn
Added on:	21-Apr-21
Description:
Difficulty:	chess puzzle 2b5/bpn1p1p1/p5Qp/rB2B3/3p2qr/P6p/P1P4R/R2NK1kN w - -
Attempts:	2
Solved:	1 (50%)


White to move, mate in 2

Comments: (3) » Last

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fredkohn
21-Apr-21, 05:57

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www.yacpdb.org lists 1. Nb2! as a solution, but this fails because of 1 ... Qg2! White cannot castle because the a7 bishop must be a promoted piece that promoted on e1. Thanks again to kingdawar for pointing this out to me.

kingdawar
21-Apr-21, 09:33

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pdb.dieschwalbe.de gives twin wPc2->e6

fredkohn
21-Apr-21, 09:47

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So a very nice pair! In the twin castling is possible as a black pawn could have promoted on c1. I have posted the twin as

puzzle #254880.

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