Chess puzzle (Advantage)
Moves: 1. Nf3 d6 2. c4 Nf6 3. b3 g6 4. Bb2 Bg7 5. e3 c5 6. Be2 Bd7 7. d4 Na6 8. a3 Rb8
9. Nbd2 O-O 10. O-O Nc7 11. Rc1 a6 12. b4 b5 13. cxb5 axb5 14. bxc5 dxc5 15.
dxc5 Bc6 16. Nb3 Re8 17. Nbd4 Bd5 18. Ne5 Ne4 19. Nec6 Bxc6 20. Nxc6 Qxd1 21.
Rfxd1 Bxb2 22. Rb1 Nc3 23. Rxb2 Nxd1 24. Bxd1 Rbc8 25. Bf3 e5 26. Na7 Rcd8 27.
h3 e4 28. Be2 Ra8 29. Nxb5 Nxb5 30. Bxb5 Reb8 31. a4 Ra7 32. Rc2 Rc7 33. c6 Rd8
34. g4 Kg7 35. Rc4 f5 36. gxf5 gxf5 37. Rc5 Kf6 38. a5 Rg8+ 39. Kf1 Kg5 40. Be2
Rg6 41. a6 Rgxc6 *
Position (FEN): 8/2r4p/P1r5/2R2pk1/4p3/4P2P/4BP2/5K2 w - - 0 42
White to move.
Themes: Advanced Pawn Endgame  
Puzzle rating: 1887
Best move: a7