Chess puzzle (Checkmate)
Moves: 1. e4 c6 2. d4 d5 3. exd5 cxd5 4. Bd3 Nf6 5. Nf3 Bg4 6. Nbd2 Nc6 7. c3 e6 8.
Nf1 Bd6 9. Ng3 O-O 10. h3 Bxf3 11. Qxf3 e5 12. dxe5 Nxe5 13. Qd1 Nxd3+ 14. Qxd3
Re8+ 15. Ne2 Qe7 16. Be3 Qe4 17. Qxe4 dxe4 18. O-O-O Be5 19. Bd4 b6 20. Bxe5
Rxe5 21. Rd4 Kf8 22. Rhd1 Ree8 23. Ng3 Re6 24. Kd2 g6 25. Ke3 Rae8 26. c4 Ng8
27. Rd7 R6e7 28. Rxe7 Rxe7 29. Rd8+ Kg7 30. b4 f5 31. c5 bxc5 32. bxc5 Rc7 33.
Kd4 Ne7 34. Rd6 Nc6+ 35. Kc4 Ne5+ 36. Kd5 Nd3 37. c6 Nb4+ 38. Kc5 Nd3+ 39. Kb5
Kf7 40. f3 Ke7 41. Rd4 Ne5 42. fxe4 Rxc6 43. exf5 Rc2 44. fxg6 hxg6 45. a4 Rxg2
46. Ne4 Rh2 47. Ng5 Rg2 48. h4 Rb2+ 49. Ka6 Nc6 50. Rc4 *
Position (FEN): 8/p3k3/K1n3p1/6N1/P1R4P/8/1r6/8 b - - 4 50
Black to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 1198
Best move: Rb6#