Chess puzzle (Equality)
Moves: 1. e4 d6 2. d4 Nd7 3. Nc3 e5 4. Nf3 c6 5. a4 Ngf6 6. Bd3 Be7 7. O-O O-O 8. b3
exd4 9. Nxd4 Nc5 10. Bg5 Qc7 11. Re1 Ng4 12. Bxe7 Qxe7 13. h3 Qe5 14. hxg4 Qxd4
15. Ne2 Qf6 16. Ng3 g6 17. Qf3 Qg5 18. e5 dxe5 19. Ne4 Nxe4 20. Qxe4 Bxg4 21.
Qxe5 Qxe5 22. Rxe5 Rfe8 23. Rae1 Bd7 24. Re7 Kf8 25. Rxe8+ Rxe8 26. Rxe8+ Kxe8
27. Kh2 Ke7 28. Kg3 Kf6 29. Kf4 g5+ 30. Ke3 h5 31. Be2 Bg4 32. Bxg4 hxg4 33.
Ke4 Ke6 34. g3 f5+ 35. Kd4 Kd6 36. b4 b5 *
Position (FEN): 8/p7/2pk4/1p3pp1/PP1K2p1/6P1/2P2P2/8 w - - 0 37
White to move.
Themes: Defensive Move Endgame, Pawn Endgame  
Puzzle rating: 1643
Best move: a5