Chess puzzle (Checkmate)
Opening: Russian_Game, Russian_Game_Three_Knights_Game
Moves: 1. e4 e5 2. Nf3 Nf6 3. Nc3 Bc5 4. Nxe5 Nc6 5. Nxc6 dxc6 6. Be2 Qd4 7. O-O O-O
8. d3 Qe5 9. Bf3 Bd6 10. d4 *
Position (FEN): r1b2rk1/ppp2ppp/2pb1n2/4q3/3PP3/2N2B2/PPP2PPP/R1BQ1RK1 b - - 0 10
Black to move.
Themes: Kingside Attack Opening Mate in 1 
Puzzle rating: 884
Best move: Qxh2#