Chess puzzle

No. 879

13 December 2025

9:00 AM

13 December 2025

9:00 AM

Martirosyan-Yilmaz, European Individual Championship 2025. Black has just pushed his pawn to c4, overlooking a crucial tactic. Martirosyan’s next move decided the game. What did he play? Email answers to chess@spectator.co.uk by Monday 22 December. There is a prize of £20 for the first correct answer out of a hat. Please include a postal address and allow six weeks for prize delivery.

Last week’s solution 1 a8=N! Kg2 2 Nb6! and regardless of Black’s response, 3 a8=Q or a8=B is mate

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