Chess puzzle (Checkmate)
Opening: Modern_Defense, Modern_Defense_Two_Knights_Variation
Moves: 1. e4 g6 2. d4 Bg7 3. Nf3 d6 4. Nc3 Nd7 5. Be3 c6 6. Qd2 e5 7. dxe5 dxe5 8.
O-O-O Ngf6 9. Bc5 Qa5 10. Bd6 Nb6 11. Nxe5 Be6 12. a3 O-O-O 13. Kb1 Bf8 14. Nb5
Qxd2 *
Position (FEN): 2kr1b1r/pp3p1p/1npBbnp1/1N2N3/4P3/P7/1PPq1PPP/1K1R1B1R w - - 0 15
White to move.
Themes: Queenside Attack Opening Mate in 1 
Puzzle rating: 1282
Best move: Nxa7#