Chess puzzle (Checkmate)
Moves: 1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. bxa6 d6 6. Nc3 g6 7. g3 Bg7 8. Bg2
Qa5 9. Bd2 O-O 10. a7 Rxa7 11. Nf3 Nbd7 12. O-O Ba6 13. a4 Qc7 14. b3 Rb8 15.
Qc2 Qb7 16. Rab1 Nxd5 17. Nxd5 Qxd5 18. Bc3 Bxc3 19. Qxc3 Bxe2 20. Rfe1 Qd3 21.
Qxd3 Bxd3 22. Rbd1 Bc2 23. Rd2 Bxb3 24. Rxe7 Be6 25. Rxd6 Kf8 26. Rdxe6 fxe6
27. Rxh7 Rb1+ 28. Bf1 Rd1 29. Kg2 Rxa4 30. Bb5 Ra7 31. Ne5 Nxe5 32. Rxa7 c4 33.
Rc7 Rc1 34. Rc5 Nd3 35. Rxc4 Ne1+ 36. Kh3 Rb1 37. Bc6 Nd3 38. Kh4 Kg7 39. Rc2
Rb4+ 40. Kg5 Ne5 41. Bg2 *
Position (FEN): 8/6k1/4p1p1/4n1K1/1r6/6P1/2R2PBP/8 b - - 12 41
Black to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 770
Best move: Nf7#