Chess puzzle (Advantage)
Opening: Old_Indian_Defense, Old_Indian_Defense_Ukrainian_Variation
Moves: 1. d4 Nf6 2. c4 d6 3. Nc3 e5 4. d5 c5 5. Qa4+ Nbd7 6. Bg5 Rb8 7. e4 a6 8. Bxf6
Qxf6 9. Nf3 Qd8 10. Bd3 Be7 11. O-O O-O 12. Qd1 Nb6 13. Nd2 f5 14. exf5 Bxf5
15. Bxf5 Rxf5 16. Nde4 Nxc4 17. Qd3 Nxb2 18. Qd2 Nc4 19. Qd3 Rf4 *
Position (FEN): 1r1q2k1/1p2b1pp/p2p4/2pPp3/2n1Nr2/2NQ4/P4PPP/R4RK1 w - - 4 20
White to move.
Themes: Hanging Piece Middlegame  
Puzzle rating: 1374
Best move: Qxc4