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Chess Problem 2000e5e301

BDS

Correspondence Chess, 2000

1r6/1bs1p3/6p1/4K1p1/1S1Pp1B1/2B1k3/7S/5R2

#3

1.d5!  (2.Bd4+ Kd2 3.Rd1#)

1...Sb5 2.Rf7  &   3.Sf1#
1...Se6 2.Bd1  &   3.Sg4#

Antipatory interference. Black's defences commit the error of blocking a line along which he will want to defend against a later threat.

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