Chess puzzle (Advantage)
Moves: 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. O-O d6 5. Nc3 Be6 6. d3 Qd7 7. Be3 O-O-O 8.
a3 Bxe3 9. fxe3 h5 10. Bb5 Qe7 11. d4 g5 12. d5 g4 13. Ne1 Nh6 14. dxe6 fxe6
15. Bxc6 bxc6 16. b4 Rhf8 17. Nd3 Qh4 18. b5 g3 19. h3 Ng4 20. Qe2 c5 21. a4 c4
22. Nb2 *
Position (FEN): 2kr1r2/p1p5/3pp3/1P2p2p/P1p1P1nq/2N1P1pP/1NP1Q1P1/R4RK1 b - - 1 22
Black to move.
Themes:  Middlegame  
Puzzle rating: 1905
Best move: Rf2