Chess puzzle (Advantage)
Opening: Queens_Pawn_Game, Queens_Pawn_Game_Accelerated_London_System
Moves: 1. d4 d5 2. Bf4 Nf6 3. e3 Bf5 4. c4 c6 5. Nf3 e6 6. Nc3 Bb4 7. Qb3 Qa5 8. Nd2
Nbd7 9. Be2 O-O 10. O-O dxc4 *
Position (FEN): r4rk1/pp1n1ppp/2p1pn2/q4b2/1bpP1B2/1QN1P3/PP1NBPPP/R4RK1 w - - 0 11
White to move.
Themes:  Middlegame  
Puzzle rating: 1543
Best move: Nxc4