White to Play
Published in Chess Puzzles
An artistic finish by Tarrasch invoking the problem composer’s Plachutta theme (called interference by practical players. That should give you a hint!
1.Bc7 Rxc7 [1...Qxc7 2.Rxc5+ Qxc5 3.Qb7+ Kxa5 4.Ra1#] 2.Qb7+ Rxb7 [2...Kxa5 3.Ra1+ Qa4 4.Rxa4#] 3.Rxc5#
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