Chess puzzle (Checkmate)
Moves: 1. d4 Nf6 2. c4 e5 3. dxe5 Ng4 4. Nf3 Nc6 5. Bf4 Bc5 6. e3 Qe7 7. Nc3 Ngxe5 8.
Nxe5 Nxe5 9. Nd5 Qd6 10. a3 a5 11. Be2 c6 12. Nc3 Qxd1+ 13. Rxd1 Ng6 14. Bg3
O-O 15. Bd6 Bxd6 16. Rxd6 Re8 17. O-O Kf8 18. Bg4 Ne5 19. Bh3 Nxc4 20. Rd4 d5
21. Bxc8 Raxc8 22. b3 Nxa3 23. Ra4 Nc2 24. Rxa5 Ra8 25. Rc5 Nb4 26. Na4 Na6 27.
Rc3 Re4 28. Ra1 Nc7 29. Rac1 Rb4 30. Nc5 Ra7 31. Kf1 Ke7 32. Ke2 Kd6 33. f3 Nb5
34. Rd3 Na3 35. e4 Rb5 36. Na4 Rb4 37. exd5 cxd5 38. Rc8 b5 39. Rd8+ Ke7 40.
R8xd5 bxa4 41. Re3+ Kf6 42. Rd6+ Kf5 43. Rd5+ Kf6 44. Rd6+ Kg5 45. bxa4 Rb2+
46. Kf1 Nc4 47. Rd5+ Kf4 *
Position (FEN): 8/r4ppp/8/3R4/P1n2k2/4RP2/1r4PP/5K2 w - - 5 48
White to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 1536
Best move: Re4#