Chess puzzle (Checkmate)
Moves: 1. e4 c6 2. d4 d5 3. e5 c5 4. dxc5 Nc6 5. Nf3 e6 6. c4 Bxc5 7. cxd5 Qxd5 8.
Qxd5 exd5 9. Nc3 Be6 10. Bf4 Nge7 11. Bd3 Ng6 12. Bg3 O-O 13. O-O Rac8 14. Rac1
Rfd8 15. h4 h5 16. Bxg6 fxg6 17. Ng5 Bf5 18. Rfd1 d4 19. Nb5 Bb6 20. Nd6 Rc7
21. Nxf5 gxf5 22. Ne6 Rcd7 23. Nxd8 Rxd8 24. Kf1 Re8 25. f4 Kf7 26. Bf2 Ke6 27.
b4 a6 28. a4 Rd8 29. b5 axb5 30. axb5 Nb4 31. Rc4 Nd5 32. Ke2 Nxf4+ 33. Kf3 Ng6
34. Bg3 Nxe5+ 35. Bxe5 Kxe5 36. Rc2 g6 37. Re2+ Kd5 38. Kf4 Kc4 39. Rc2+ Kxb5
40. Rb1+ Ka6 41. Kg5 Rd6 42. Rc8 Ba7 43. Rc4 b5 44. Rcb4 d3 45. Rxb5 *
Position (FEN): 8/b7/k2r2p1/1R3pKp/7P/3p4/6P1/1R6 b - - 0 45
Black to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 828
Best move: Be3#