Chess puzzle (Checkmate)
Moves: 1. d4 Nf6 2. c4 e6 3. a3 d5 4. cxd5 exd5 5. Nc3 Bf5 6. Nf3 c5 7. Bg5 cxd4 8.
Qxd4 Nc6 9. Qa4 Be7 10. e3 O-O 11. Bb5 Rc8 12. O-O Ne4 13. Bxe7 Qxe7 14. Rac1
Nxc3 15. Rxc3 Ne5 16. Rxc8 Rxc8 17. Nd4 Be4 18. f3 Bd3 19. Bxd3 Nxd3 20. Nf5
Qe5 21. Qg4 g6 22. Nh6+ Kg7 23. Qxc8 Qxe3+ 24. Kh1 Nf2+ 25. Kg1 Nh3+ 26. Kh1
Qg1+ 27. Rxg1 *
Position (FEN): 2Q5/pp3pkp/6pN/3p4/8/P4P1n/1P4PP/6RK b - - 0 27
Black to move.
Themes:  Endgame Mate in 1, Smothered Mate 
Puzzle rating: 939
Best move: Nf2#