Chess puzzle (Crushing)
Moves: 1. e4 c5 2. Nf3 d6 3. Nc3 Nc6 4. d4 cxd4 5. Nxd4 e5 6. Nb3 Nf6 7. Bg5 Be7 8.
Qd2 O-O 9. O-O-O a6 10. Bxf6 Bxf6 11. Qxd6 Bg4 12. f3 Be6 13. Qb4 Nxb4 14. Rxd8
Raxd8 15. a3 Nc6 16. Nc5 Na5 17. b4 Nc4 18. Bxc4 Bxc4 19. Kb2 b5 20. Nxa6 Rd2
21. Rg1 Rfd8 22. Nc5 Bd3 23. Nxd3 R8xd3 24. Kb3 Rd4 25. Nxb5 Rd8 26. a4 Rc8 27.
Nc3 Be7 28. b5 Rd4 29. Na2 Ra8 30. c4 Rd3+ 31. Nc3 Rd4 32. Ra1 Rc8 33. Nd5 Bd6
34. a5 Rcxc4 35. b6 Kf8 36. a6 Bc5 *
Position (FEN): 5k2/5ppp/PP6/2bNp3/2rrP3/1K3P2/6PP/R7 w - - 1 37
White to move.
Themes: Advanced Pawn Endgame  
Puzzle rating: 1859
Best move: a7