THREE-MOVER An orthodox chess problem in which White must checkmate Black King in three moves. Chéron, André vs Mate in 3 moves 1-0 Feuille d’Avis de Lausanne 1930 1B6/8/3p4/3P4/7R/5p2/5P1k/5K2 w - - 0 1 You must activate JavaScript to enhance chess diagram visualization. 1. Bb8 d6 1… d5 2. Rc7 Kxh2 3. Rh7# 2. d5 Kxh2 3. Rh4# 1-0