Chess puzzle (Advantage)
Moves: 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bxb4 5. c3 Bc5 6. d4 exd4 7. cxd4 Bb6 8.
Qb3 Qe7 9. Bg5 f6 10. Bh4 Nh6 11. O-O d6 12. Re1 Bg4 13. e5 O-O-O 14. exf6 Qf8
15. fxg7 Qxg7 16. Bxd8 Nxd8 17. Nbd2 Ndf7 18. h3 Bxh3 19. g3 Ng5 20. Nxg5 Qxg5
21. Qe3 Qxe3 22. Rxe3 *
Position (FEN): 2k4r/ppp4p/1b1p3n/8/2BP4/4R1Pb/P2N1P2/R5K1 b - - 0 22
Black to move.
Themes:  Middlegame  
Puzzle rating: 990
Best move: Bxd4