Chess puzzle (Advantage)
Moves: 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 Ng4 7. Bd2 Nc6 8.
Nxc6 bxc6 9. Be2 Nf6 10. O-O g6 11. Be3 Bg7 12. Qd2 O-O 13. Rad1 Qc7 14. Bh6
Rd8 15. Bxg7 Kxg7 16. h4 h5 17. Qg5 Rb8 18. b3 Bd7 19. Rd3 Nh7 20. Qg3 Nf6 21.
Qg5 Nh7 22. Qxe7 Re8 23. Qxd6 Qxd6 24. Rxd6 Rb7 25. Bxa6 Ra7 26. Bc4 Nf6 27. f3
Rc7 28. Na4 Bc8 29. Rfd1 Re5 30. Nc3 Bb7 31. Ne2 Kf8 32. Rd8+ Ke7 33. Ng3 Nd7
34. Rh8 Nf6 35. Rhd8 Ra5 36. a4 Ra7 37. R8d2 Ra8 38. Ne2 Bc8 39. e5 Nd7 40. f4
Bb7 41. g3 Nc5 42. Nc3 Bc8 43. Re1 Bg4 44. Ne4 Nxe4 45. Rxe4 Rac8 46. Be2 Bf5
47. Rb4 Ke6 48. a5 Ra8 49. Ra4 Rca7 50. b4 Be4 51. Bd3 Bxd3 52. Rxd3 Rb8 53. c3
Ra6 54. Rd6+ Ke7 55. c4 f6 56. b5 cxb5 57. Rxa6 *
Position (FEN): 1r6/4k3/R4pp1/Pp2P2p/R1P2P1P/6P1/8/6K1 b - - 0 57
Black to move.
Themes: Hanging Piece Endgame, Rook Endgame  
Puzzle rating: 801
Best move: bxa4