Chess puzzle (Crushing)
Moves: 1. d4 d5 2. Nf3 Nc6 3. c3 Nf6 4. Bg5 e6 5. h4 Be7 6. Bxf6 Bxf6 7. g4 g6 8. g5
Bg7 9. h5 gxh5 10. Rxh5 f6 11. gxf6 Qxf6 12. Qc2 h6 13. Nbd2 Bd7 14. e4 dxe4
15. Qxe4 O-O-O 16. O-O-O Rde8 17. Qc2 Ne7 18. Ra5 Nc6 19. Ra3 Bf8 20. b4 a6 21.
b5 *
Position (FEN): 2k1rb1r/1ppb4/p1n1pq1p/1P6/3P4/R1P2N2/P1QN1P2/2KR1B2 b - - 0 21
Black to move.
Themes: Hanging Piece, Queenside Attack Middlegame  
Puzzle rating: 1296
Best move: Bxa3+