Chess puzzle (Crushing)
Moves: 1. e4 c5 2. Nf3 Nc6 3. Bb5 e6 4. O-O g6 5. d4 cxd4 6. Nxd4 Bg7 7. Be3 Nge7 8.
Nc3 O-O 9. Re1 a6 10. Bf1 b5 11. Qd2 Bb7 12. Rad1 Nxd4 13. Bxd4 d5 14. exd5
Nxd5 15. Nxd5 Bxd5 16. g3 Bxd4 17. Qxd4 Qc7 18. Bg2 Rad8 19. Bxd5 Rxd5 20. Qe4
Rfd8 21. Qe2 Qd6 22. Rxd5 Qxd5 23. b3 Qd4 24. Kg2 Qc3 25. Rd1 Rc8 26. Rd2 Rc5
27. Qd3 Qe5 28. Qd6 Qe4+ 29. Kg1 Rxc2 30. Rxc2 Qxc2 31. Qxa6 Qb1+ 32. Kg2 Qe4+
33. Kg1 Qe5 34. a4 bxa4 35. bxa4 Qc7 36. h4 Kg7 37. Qb5 Qa7 *
Position (FEN): 8/q4pkp/4p1p1/1Q6/P6P/6P1/5P2/6K1 w - - 3 38
White to move.
Themes: Defensive Move Endgame, Queen Endgame  
Puzzle rating: 1923
Best move: a5