Chess puzzle (Checkmate)
Moves: 1. d4 d5 2. Nf3 c5 3. c3 Nf6 4. Bf4 Nc6 5. e3 e6 6. Be2 Bd6 7. Bxd6 Qxd6 8.
Nbd2 cxd4 9. exd4 e5 10. dxe5 Nxe5 11. Nxe5 Qxe5 12. Nf3 Qd6 13. O-O O-O 14. c4
Bg4 15. h3 Bh5 16. Qd2 Ne4 17. Qc2 Bg6 18. Bd3 Rac8 19. Rfd1 Qe6 20. Re1 Qb6
21. b3 Rfe8 22. Nh4 Qf6 23. Nxg6 Qxg6 24. f3 Qb6+ 25. Kf1 *
Position (FEN): 2r1r1k1/pp3ppp/1q6/3p4/2P1n3/1P1B1P1P/P1Q3P1/R3RK2 b - - 2 25
Black to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 1594
Best move: Ng3#