Chess puzzle (Checkmate)
Opening: Scandinavian_Defense, Scandinavian_Defense_Icelandic-Palme_Gambit
Moves: 1. e4 d5 2. exd5 Nf6 3. c4 e6 4. dxe6 Bxe6 5. Nc3 Bc5 6. Nf3 Nc6 7. Be2 Nd4 8.
Nxd4 Qxd4 9. O-O Ng4 10. Nb5 Qf4 11. d4 *
Position (FEN): r3k2r/ppp2ppp/4b3/1Nb5/2PP1qn1/8/PP2BPPP/R1BQ1RK1 b kq - 0 11
Black to move.
Themes: Kingside Attack Middlegame Mate in 1 
Puzzle rating: 1012
Best move: Qxh2#