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White moves and mate in 6 moves

Submitted and composed by Valentin Albillo

(White: Kd3, Bb4, Bb7, Ng3, Ng7. Black: Ke5.)

Solution:

1. Ne4 Kf4 2. Ke2 Kg4 3. Kf2 Kf4 4. Bd6+ Kg4 5. Bc8+ Kh4 6. Be7#