Chess puzzle (Checkmate)
Moves: 1. e3 e5 2. d3 d5 3. c3 c5 4. g3 Nf6 5. Bg2 b6 6. Ne2 Bb7 7. c4 Qc7 8. cxd5
Bxd5 9. Bxd5 Nxd5 10. e4 Nf6 11. O-O Nc6 12. a3 Be7 13. Bg5 Rd8 14. Bxf6 Bxf6
15. Qd2 h6 16. Nbc3 Bg5 17. f4 exf4 18. gxf4 Be7 19. Ng3 O-O 20. Nd5 Qd7 21.
Nxe7+ Qxe7 22. Nf5 Qxe4 23. dxe4 Rxd2 24. Rfd1 Rxb2 25. e5 g6 26. Nxh6+ Kg7 27.
Ng4 Nd4 28. Kh1 Rh8 29. Rdb1 Rxb1+ 30. Rxb1 Rh4 31. Rg1 Nf3 32. Rg2 c4 33. Nf6
b5 34. Nd5 a5 35. Rb2 b4 36. axb4 axb4 37. Nxb4 c3 38. Rc2 Rxf4 39. Nc6 Re4 40.
Rxc3 Nh4 41. Rc5 *
Position (FEN): 8/5pk1/2N3p1/2R1P3/4r2n/8/7P/7K b - - 2 41
Black to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 507
Best move: Re1#