Chess puzzle (Checkmate)
Moves: 1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. Nf3 Bf5 5. cxd5 cxd5 6. Qb3 Bc8 7. Bg5 e6 8. e3
Be7 9. Bb5+ Bd7 10. Ne5 b6 11. Bxf6 Bxf6 12. Nxd7 Nxd7 13. Qa4 a5 14. Bc6 Rc8
15. Qb5 Qc7 16. Bxd7+ Qxd7 17. Qxb6 O-O 18. Qa6 Rb8 19. Qe2 e5 20. dxe5 Bxe5
21. O-O Rb6 22. Rad1 Bxc3 23. bxc3 Qc6 24. Rd4 Qxc3 25. Rxd5 Rb2 26. Qd1 Rxa2
27. Rd8 g6 28. Rd3 Qc2 29. Qxc2 Rxc2 30. Ra3 Ra8 31. Ra4 Rb2 32. Rfa1 Rb5 33.
h4 h5 34. g3 f5 35. Kf1 Kf7 36. f4 Ke6 37. Ke2 Rd5 38. Kf3 Kd6 39. e4 fxe4+ 40.
Kxe4 Re8+ 41. Kf3 Ra8 42. R1a3 Rb5 43. Re4 Rab8 44. Rd3+ Kc5 45. Rc3+ Kd5 46.
Re5+ Kd4 47. Ree3 a4 *
Position (FEN): 1r6/8/6p1/1r5p/p2k1P1P/2R1RKP1/8/8 w - - 0 48
White to move.
Themes:  Endgame, Rook Endgame Mate in 1 
Puzzle rating: 1423
Best move: Red3#