Chess puzzle (Advantage)
Moves: 1. e4 c5 2. Bc4 Nf6 3. d3 e6 4. Bf4 a6 5. Bxb8 Rxb8 6. Nf3 d6 7. c3 Be7 8. d4
b5 9. dxc5 bxc4 10. cxd6 Qxd6 11. Qxd6 Bxd6 12. e5 Bxe5 13. Nxe5 O-O 14. O-O
Rxb2 15. Nxc4 Re2 16. Nbd2 Bb7 17. Rae1 Rxe1 18. Rxe1 Nd5 19. Nd6 Bc6 20. c4
Nf4 21. f3 Rd8 22. N2e4 *
Position (FEN): 3r2k1/5ppp/p1bNp3/8/2P1Nn2/5P2/P5PP/4R1K1 b - - 2 22
Black to move.
Themes:  Endgame  
Puzzle rating: 1849
Best move: f5