Chess puzzle (Checkmate)
Moves: 1. d4 e6 2. c4 f5 3. Nc3 Nf6 4. Bg5 b6 5. Nf3 Bb7 6. g3 Bb4 7. Qb3 Qe7 8. a3
Bxc3+ 9. Qxc3 O-O 10. Bg2 d6 11. Bxf6 Qxf6 12. O-O Nd7 13. Rad1 Rae8 14. b4 e5
15. d5 Ra8 16. Nd2 a5 17. Ra1 h6 18. Nb3 a4 19. Nd2 e4 20. Qxf6 Rxf6 21. Rac1
Re8 22. Rc3 Rf7 23. f4 Ba6 24. e3 g6 25. Rfc1 Kf8 26. Bf1 Bb7 27. R3c2 Ke7 28.
Nb1 Ra8 29. Nc3 Kd8 30. Rd2 Ba6 31. Be2 h5 32. Rd4 Bb7 33. Bd1 Rf6 34. Bxa4 Bc8
35. Ra1 Nb8 36. Bc6 Ra7 37. Nb5 Ra6 38. a4 Bd7 39. Bxd7 Kxd7 40. Rd2 Ra8 41. a5
bxa5 42. Rda2 Rf8 43. Rxa5 Rxa5 44. Rxa5 Kc8 45. Ra7 Rf7 46. Nd4 Nd7 47. Ne6
Nb6 48. Ng5 Rd7 49. c5 Nxd5 50. c6 Re7 *
Position (FEN): 2k5/R1p1r3/2Pp2p1/3n1pNp/1P2pP2/4P1P1/7P/6K1 w - - 1 51
White to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 536
Best move: Ra8#