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Chess Problem 1987f2e401

BDS

Comm., British Chess Magazine 5th TT., 1987

b7/1Q6/2r5/8/4kP1b/B3P1P1/5Ks1/8

H#2
2 solutions

1.Sxf4 Bd6 2.Sd5 Qh7#
1.Sxe3 Bc5 2.Sd5 Qb1#

The bS can travel to d5 (to self-block) by two routes. Each one, by capturing a pawn, takes a guard off a bK flight. In response, White must re-guard that square while at the same time interfering with the bR.

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