Chess puzzle (Advantage)
Moves: 1. d4 d5 2. Bf4 Nc6 3. Nc3 a6 4. e3 Nf6 5. h3 Bf5 6. a3 e6 7. Nf3 Bd6 8. Ne5
O-O 9. Nxc6 bxc6 10. Bxd6 cxd6 11. Be2 Qb6 12. Rb1 e5 13. dxe5 dxe5 14. O-O
Rfd8 15. b4 Qc7 16. Na4 Be4 17. Nc5 Bg6 18. Nxa6 Qe7 19. Ra1 Ne4 20. Bf3 *
Position (FEN): r2r2k1/4qppp/N1p3b1/3pp3/1P2n3/P3PB1P/2P2PP1/R2Q1RK1 b - - 4 20
Black to move.
Themes: Hanging Piece Middlegame  
Puzzle rating: 1514
Best move: Rxa6