Chess puzzle (Advantage)
Moves: 1. e4 c6 2. d4 d6 3. Nc3 Nd7 4. Nf3 h6 5. Bd3 g5 6. Be3 Bg7 7. Qd2 Nf8 8. h3 g4
9. hxg4 Bxg4 10. Nh4 Bd7 11. Nf3 a5 12. Nh4 b5 13. Nf5 Bf6 14. Nxh6 Nxh6 15.
Rxh6 a4 16. Rxh8 Bxh8 17. Bh6 b4 18. Ne2 Qa5 19. O-O-O b3 20. Bxf8 *
Position (FEN): r3kB1b/3bpp2/2pp4/q7/p2PP3/1p1B4/PPPQNPP1/2KR4 b q - 0 20
Black to move.
Themes: Advanced Pawn Middlegame  
Puzzle rating: 1821
Best move: bxa2