Chess puzzle (Checkmate)
Opening: Queens_Pawn_Game, Queens_Pawn_Game_Colle_System
Moves: 1. d4 d5 2. Nf3 Nf6 3. e3 e6 4. Bd3 Be7 5. Nbd2 O-O 6. O-O c5 7. c3 Nc6 8. Qe2
Bd7 9. e4 dxe4 10. Nxe4 Nxe4 11. Qxe4 cxd4 *
Position (FEN): r2q1rk1/pp1bbppp/2n1p3/8/3pQ3/2PB1N2/PP3PPP/R1B2RK1 w - - 0 12
White to move.
Themes: Kingside Attack Opening Mate in 1 
Puzzle rating: 431
Best move: Qxh7#