Solution To Problem Of The Day 2004-07-13

1. c8=N+ the only move that doesn't lose outright. For example 1. c8=Q? Qf3+ 2. Kh2 Qf4+ 3. Kh1 fxg1=Q+ 4. Rxg1 Qxh6+ 5. Qh3 Qxh3# and it's White who gets mated. So 1...Qxc8 (otherwise 1...Ka8 2. Rxa6 Ra7 3. Rxa7#) 2. Qxg7+ Ka8 3. Qg2+ (3. Rxa6 delays mate by one move) 3...Ka7 4. Rh7+ and mate in next move.