Chess puzzle (Advantage)
Moves: 1. e4 d5 2. e5 e6 3. Nf3 c5 4. d3 Nc6 5. Nbd2 Nge7 6. Ng5 Ng6 7. Ndf3 Ncxe5 8.
d4 cxd4 9. Qxd4 Nxf3+ 10. gxf3 h6 11. Nh3 a6 12. Be3 Bd7 13. O-O-O Qa5 14. Kb1
Rc8 15. Nf4 Nxf4 16. Qxf4 Bb5 17. Bh3 Ba4 18. Rc1 Bc5 19. Qg4 Bxe3 20. fxe3 Qd2
*
Position (FEN): 2r1k2r/1p3pp1/p3p2p/3p4/b5Q1/4PP1B/PPPq3P/1KR4R w k - 1 21
White to move.
Themes: Hanging Piece Middlegame  
Puzzle rating: 1171
Best move: Qxa4+