Chess puzzle (Advantage)
Moves: 1. e4 d6 2. Nf3 Nf6 3. Nc3 g6 4. Bc4 Bg7 5. d4 O-O 6. Bg5 Nbd7 7. Qd2 e5 8. Bh6
exd4 9. Nxd4 c5 10. Nf3 Re8 11. Bxg7 Kxg7 12. O-O-O Nxe4 13. Nxe4 Rxe4 14. Qd5
Re6 15. Ng5 Nf6 16. Nxe6+ Bxe6 17. Qd3 Ng4 18. Qc3+ Kg8 19. Rde1 Nxf2 20. Rhf1
Qg5+ 21. Kb1 Bxc4 *
Position (FEN): r5k1/pp3p1p/3p2p1/2p3q1/2b5/2Q5/PPP2nPP/1K2RR2 w - - 0 22
White to move.
Themes:  Middlegame  
Puzzle rating: 1768
Best move: Qxc4