Chess puzzle (Advantage)
Opening: Nimzo-Indian_Defense, Nimzo-Indian_Defense_Classical_Variation
Moves: 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 d5 5. a3 Bxc3+ 6. bxc3 dxc4 7. Qa4+ Nc6 8.
Qxc4 O-O 9. Nf3 b6 *
Position (FEN): r1bq1rk1/p1p2ppp/1pn1pn2/8/2QP4/P1P2N2/4PPPP/R1B1KB1R w KQ - 0 10
White to move.
Themes: Hanging Piece Middlegame  
Puzzle rating: 891
Best move: Qxc6