Chess puzzle (Advantage)
Moves: 1. Nf3 d5 2. c4 Nf6 3. Nc3 d4 4. Nb5 Nc6 5. Qa4 Bd7 6. Qb3 e5 7. e3 dxe3 8.
dxe3 e4 9. Ng5 Bb4+ 10. Nc3 O-O 11. Be2 Bg4 12. O-O Bxc3 13. Bxg4 Nxg4 14. Nxe4
Bb4 15. a3 Be7 16. Qxb7 Nge5 17. Qb3 Rb8 18. Qc2 Ng6 19. b4 Nce5 20. Bb2 Bf6
21. Rab1 Qd7 22. Nxf6+ gxf6 23. Rbd1 Qg4 *
Position (FEN): 1r3rk1/p1p2p1p/5pn1/4n3/1PP3q1/P3P3/1BQ2PPP/3R1RK1 w - - 2 24
White to move.
Themes:  Middlegame  
Puzzle rating: 1901
Best move: f4