Chess puzzle (Checkmate)
Moves: 1. e4 c5 2. d4 cxd4 3. Qxd4 Nc6 4. Qe3 d6 5. Nc3 e5 6. Bb5 Bd7 7. Bxc6 Bxc6 8.
Nd5 Nf6 9. Nxf6+ Qxf6 10. Nf3 g6 11. O-O Bg7 12. c3 O-O 13. Ng5 Rfd8 14. f3 a5
15. Qb6 Bh6 16. Nh3 Bxc1 17. Raxc1 Ra6 18. Qe3 Bd7 19. Nf2 h5 20. Qd3 Qe7 21.
Qd5 Bc6 22. Qd2 Rb6 23. b3 d5 24. Rcd1 d4 25. c4 Qb4 26. Qg5 Qd6 27. Qc1 Qc5
28. Nd3 Qe7 29. c5 Rb5 30. Rde1 Kg7 31. f4 exf4 32. Qxf4 Rf8 33. e5 Qe6 34.
Qf6+ Qxf6 35. Rxf6 Bd5 36. Ref1 Be4 37. Nf2 Bf5 38. c6 bxc6 39. Rxc6 Rxe5 40.
Rfc1 Rfe8 41. Ra6 Re1+ 42. Rxe1 *
Position (FEN): 4r3/5pk1/R5p1/p4b1p/3p4/1P6/P4NPP/4R1K1 b - - 0 42
Black to move.
Themes:  Endgame Back Rank Mate, Mate in 1 
Puzzle rating: 405
Best move: Rxe1#