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Chess Problem 1995b7c501

BDS

British Chess Magazine, 1995

s5Bs/BK1p1p2/1p3b2/1Sk1p3/2P5/PP2p3/p7/7S

#4

1.Sg3? (2.Se4#) 1...d5!

1.Bb8! (2.Bd6#)

1...Be7 2.Bd6+ Bxd6 3.Sg3    (4.Se4#)
                          f5  4.b4#

The Dresden theme, in which an adequate defence by one piece (1...d5! after the try) is substituted for by a bad defence by another piece (3...f5). White decoys the black bishop from f6 to d6, which takes two moves, and then plays 3.Sg3!, after which the substitute defence 3...f5 opens a line of guard from the WBg8, allowing 4.b4#.

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