Chess puzzle (Advantage)
Opening: Four_Knights_Game, Four_Knights_Game_Italian_Variation
Moves: 1. e4 e5 2. Nf3 Nc6 3. Nc3 Bc5 4. Bc4 Nf6 5. h3 Nd4 6. O-O d6 7. d3 c6 8. a3
Qb6 9. b4 Nxf3+ 10. Qxf3 Bd4 11. Bb2 a5 12. Na4 Qc7 13. Bxd4 exd4 14. Nb2 O-O
15. b5 d5 16. exd5 cxb5 17. Bxb5 Qxc2 *
Position (FEN): r1b2rk1/1p3ppp/5n2/pB1P4/3p4/P2P1Q1P/1Nq2PP1/R4RK1 w - - 0 18
White to move.
Themes:  Middlegame  
Puzzle rating: 1766
Best move: Nc4