Chess puzzle (Checkmate)
Opening: Russian_Game, Russian_Game_Nimzowitsch_Attack
Moves: 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. Nc3 Nf6 6. b3 Qe7+ 7. Be2 Ne4 8.
Nxe4 Qxe4 9. Bb2 Nd7 10. d3 Qg6 11. g3 Be7 12. Qd2 Bf6 13. Bxf6 Qxf6 14. O-O-O
*
Position (FEN): r1b1k2r/pppn1ppp/3p1q2/8/8/1P1P1NP1/P1PQBP1P/2KR3R b kq - 1 14
Black to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 1025
Best move: Qa1#