Chess puzzle (Checkmate)
Moves: 1. d4 d5 2. e3 Nc6 3. f4 Nf6 4. Bd3 Nb4 5. Nf3 Nxd3+ 6. cxd3 Bg4 7. O-O h5 8.
b3 Qd7 9. Nbd2 h4 10. a4 Ng8 11. Ba3 f6 12. Qc2 g5 13. Rac1 c6 14. e4 gxf4 15.
exd5 Qxd5 16. Rfe1 h3 17. Qc5 Bxf3 18. Nxf3 hxg2 19. Qxd5 cxd5 20. Kxg2 Nh6 21.
Rc7 Rg8+ 22. Kh1 Ng4 23. Bxe7 *
Position (FEN): r3kbr1/ppR1B3/5p2/3p4/P2P1pn1/1P1P1N2/7P/4R2K b q - 0 23
Black to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 912
Best move: Nf2#