Chess puzzle (Checkmate)
Opening: Queens_Pawn_Game, Queens_Pawn_Game_Colle_System
Moves: 1. d4 Nf6 2. Nf3 d5 3. e3 Bf5 4. Bb5+ c6 5. Ba4 Ne4 6. O-O a5 7. a3 b5 8. Bb3
Nd7 9. Nc3 Nb6 10. Nxe4 Bxe4 11. Nd2 Bg6 12. c3 e6 13. Bc2 b4 14. axb4 axb4 15.
Rxa8 Qxa8 16. Bxg6 hxg6 17. cxb4 Qb8 18. Qc2 *
Position (FEN): 1q2kb1r/5pp1/1np1p1p1/3p4/1P1P4/4P3/1PQN1PPP/2B2RK1 b k - 2 18
Black to move.
Themes: Kingside Attack Middlegame Mate in 1 
Puzzle rating: 637
Best move: Qxh2#