Daily puzzle 010407

Black plays and wins. The solution will be published tomorrow.

Yesterday's solution: 1.Bf7 Kxf7 (1...Rxd2 2.Qxg6+ Kf8 3.Qg8+ Ke7 4.Qe8+ Kd6 5.Rxf6#; 1...Qxf7 2.Rxd8] 2.Rxd8 Qxd8 3.Qb7+ Kg8 4.Qxa6 1-0 (Stahlberg-Najdorf, Buenos Aires 1947).

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