Chess puzzle (Crushing)
Moves: 1. e4 e6 2. d4 b6 3. f4 Bb7 4. Bd3 Nf6 5. Qe2 h5 6. Nf3 Be7 7. c3 d6 8. h3 Nbd7
9. Be3 c6 10. Nbd2 Qc7 11. a4 O-O-O 12. a5 bxa5 13. O-O c5 14. Ba6 Qb6 15.
Bxb7+ Kxb7 16. Rfb1 Qa6 17. Nc4 a4 18. b3 Nb6 19. Nfd2 d5 20. e5 Nfd7 21. bxa4
dxc4 *
Position (FEN): 3r3r/pk1nbpp1/qn2p3/2p1P2p/P1pP1P2/2P1B2P/3NQ1P1/RR4K1 w - - 0 22
White to move.
Themes:  Middlegame  
Puzzle rating: 1819
Best move: a5