Chess puzzle (Crushing)
Moves: 1. c4 e5 2. Nc3 Bc5 3. Nf3 d6 4. g3 a6 5. Bg2 c6 6. O-O Nf6 7. d3 h6 8. a3 O-O
9. b4 Bb6 10. Rb1 Nbd7 11. a4 Re8 12. a5 Ba7 13. Nd2 Nf8 14. Nde4 Ne6 15. Ba3
Nd4 16. b5 axb5 17. Nxd6 Re6 18. e3 bxc4 19. exd4 Rxd6 20. Bxd6 Qxd6 21. dxe5
Qxe5 22. Ne4 cxd3 23. Nxf6+ Qxf6 24. Qxd3 Bf5 25. Be4 Rd8 26. Qf3 Bxe4 27. Qxe4
Rb8 28. a6 bxa6 29. Rxb8+ Bxb8 30. Ra1 *
Position (FEN): 1b4k1/5pp1/p1p2q1p/8/4Q3/6P1/5P1P/R5K1 b - - 1 30
Black to move.
Themes: Hanging Piece Endgame  
Puzzle rating: 838
Best move: Qxa1+