Chess puzzle (Advantage)
Moves: 1. e4 e5 2. d4 exd4 3. c3 d5 4. exd5 Qxd5 5. Nf3 Nc6 6. Nxd4 Nf6 7. Qa4 Bd7 8.
Qc4 Nxd4 9. Qxd4 Bc5 10. Qxd5 Nxd5 11. Bc4 Bc6 12. O-O O-O-O 13. b4 Bb6 14. b5
Be8 15. Rd1 Nf6 16. Rxd8+ Kxd8 17. Bg5 Kc8 18. Nd2 h6 19. Bxf6 gxf6 20. a4 c6
21. a5 Bc7 22. bxc6 Bxc6 23. Bxf7 Rd8 24. Be6+ Kb8 25. Nc4 Bd5 26. Bxd5 Rxd5
27. a6 bxa6 28. Ne3 Rd3 29. Rxa6 Rxc3 30. g3 Bb6 31. Nd5 Rc6 32. Ra1 Bd4 33.
Rb1+ Ka8 34. Ne7 Rc2 35. Rf1 a5 36. Nf5 Bc5 37. Nxh6 a4 38. Kh1 Rxf2 39. Ra1 *
Position (FEN): k7/8/5p1N/2b5/p7/6P1/5r1P/R6K b - - 1 39
Black to move.
Themes:  Endgame  
Puzzle rating: 1420
Best move: a3