Chess puzzle (Checkmate)
Opening: Russian_Game, Russian_Game_Stafford_Gambit
Moves: 1. e4 e5 2. Nf3 Nf6 3. Nxe5 Nc6 4. Nxc6 dxc6 5. e5 Ng4 6. d4 c5 7. c3 cxd4 8.
cxd4 c5 9. Be2 h5 10. h3 Nh6 11. Nc3 cxd4 12. Ne4 Bf5 13. Nd6+ Bxd6 14. exd6
Qxd6 15. Bb5+ Bd7 16. Qe2+ Kf8 17. O-O Ng4 18. Bxd7 *
Position (FEN): r4k1r/pp1B1pp1/3q4/7p/3p2n1/7P/PP2QPP1/R1B2RK1 b - - 0 18
Black to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 630
Best move: Qh2#