Chess puzzle (Checkmate)
Opening: Englund_Gambit_Complex, Englund_Gambit_Complex_Englund_Gambit
Moves: 1. d4 e5 2. dxe5 Nc6 3. Nf3 Qe7 4. Nc3 Nxe5 5. Nxe5 Qxe5 6. e3 Bb4 7. Bd2 Nf6
8. Be2 O-O 9. O-O d5 10. a3 Bd6 11. Nb5 *
Position (FEN): r1b2rk1/ppp2ppp/3b1n2/1N1pq3/8/P3P3/1PPBBPPP/R2Q1RK1 b - - 2 11
Black to move.
Themes: Kingside Attack Opening Mate in 1 
Puzzle rating: 870
Best move: Qxh2#