1. Kd7 White blocks his own pawn in order to prevent Bc6. 1... Kd5 threatens Bc6. 2. Kc7 Bc6 3. Ne4! Black is in Zugzwang. 3... Ba4? 3... Bb5 4. Nc3+ and the bishop is lost. 3... Be8 4. Nf6+ and the bishop is lost. 4. Nc3+ and White wins. 1-0 [Kjell Persson]