Chess puzzle (Checkmate)
Moves: 1. c4 g6 2. d4 Bg7 3. Nc3 d6 4. e4 Nc6 5. Nge2 e5 6. Be3 Nh6 7. f3 f5 8. d5 Ne7
9. Qd2 Nf7 10. c5 O-O 11. O-O-O dxc5 12. Bxc5 Nd6 13. Kb1 b6 14. Bg1 fxe4 15.
Nxe4 Bb7 16. N2c3 Nef5 17. Ng5 Bh6 18. h4 Nxh4 19. f4 Rxf4 20. Ne6 Qf6 21. Nxf4
Bxf4 22. Be3 Rf8 23. Bxf4 exf4 24. Bd3 f3 25. gxf3 Nxf3 26. Qg2 Ne5 27. Rdf1
Qg7 28. Rxf8+ Qxf8 29. Bc2 Qg7 30. Qh3 Bc8 31. Qg3 Nec4 32. Re1 b5 33. b3 Na3+
34. Kc1 b4 35. Na4 Qa1+ 36. Kd2 Qd4+ 37. Kc1 Nxc2 38. Kxc2 Bf5+ 39. Kc1 Qa1+
40. Kd2 Qxa2+ 41. Ke3 Qxb3+ 42. Kf4 Qxa4 43. Kg5 Qa3 44. Qe5 Qc3 45. Qxc3 bxc3
46. Re7 Nb5 47. Kf6 c2 *
Position (FEN): 6k1/p1p1R2p/5Kp1/1n1P1b2/8/8/2p5/8 w - - 0 48
White to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 668
Best move: Re8#