Chess puzzle (Checkmate)
Moves: 1. c4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Ndb5 a6 7. Nd6+ Bxd6 8.
Qxd6 Qe7 9. Qxe7+ Nxe7 10. Bg5 Nc6 11. O-O-O Ng4 12. Bh4 f5 13. Nd5 O-O 14. f3
Nf6 15. Nxf6+ gxf6 16. Rd6 Kg7 17. e3 b5 18. cxb5 axb5 19. Kb1 Ba6 20. Bd3 Kg6
21. Rxd7 Rad8 22. Rxd8 Rxd8 23. Bc2 Rd2 24. g4 Nb4 25. Bxf5+ Kf7 26. Rc1 Rxh2
27. Be1 Re2 28. Bxb4 Rxe3 29. Rc7+ Kg8 30. Bxh7+ Kh8 31. Be4 Re2 32. Be7 b4 33.
Bxf6+ Kg8 34. Bh7+ Kf8 35. Bg6 Re1+ 36. Kc2 Rf1 37. Ra7 Rf2+ 38. Kd1 Rf1+ 39.
Kd2 Rf2+ 40. Ke3 *
Position (FEN): 5k2/R7/b4BB1/4p3/1p4P1/4KP2/PP3r2/8 b - - 14 40
Black to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 867
Best move: Re2#