Chess puzzle (Checkmate)
Opening: Russian_Game, Russian_Game_Stafford_Gambit
Moves: 1. e4 e5 2. Nf3 Nf6 3. Nxe5 Nc6 4. Nxc6 dxc6 5. d3 Bc5 6. Be2 h5 7. c3 Ng4 8.
d4 Bb6 9. Bf4 Qf6 10. Qd2 Bd7 11. O-O O-O-O 12. e5 Qh4 13. g3 *
Position (FEN): 2kr3r/pppb1pp1/1bp5/4P2p/3P1Bnq/2P3P1/PP1QBP1P/RN3RK1 b - - 0 13
Black to move.
Themes: Kingside Attack Middlegame Mate in 1 
Puzzle rating: 853
Best move: Qxh2#