Chess puzzle (Advantage)
Moves: 1. d4 Nf6 2. Nf3 g6 3. h3 Bg7 4. Nbd2 O-O 5. e4 d6 6. Bb5 Nbd7 7. c3 a6 8. Ba4
b5 9. Bb3 c5 10. d5 c4 11. Bc2 Nc5 12. O-O e6 13. dxe6 fxe6 14. a4 Bb7 15. axb5
axb5 16. Rxa8 Qxa8 17. Re1 Bxe4 18. Bxe4 Ncxe4 19. Nxe4 Nxe4 20. Nd4 Bxd4 *
Position (FEN): q4rk1/7p/3pp1p1/1p6/2pbn3/2P4P/1P3PP1/2BQR1K1 w - - 0 21
White to move.
Themes:  Middlegame  
Puzzle rating: 1444
Best move: Qxd4