Chess puzzle (Advantage)
Moves: 1. d4 e5 2. dxe5 Nc6 3. e4 Nxe5 4. f4 Nc6 5. Nc3 Bb4 6. Bd2 d6 7. Nf3 Nf6 8.
Bc4 O-O 9. Qe2 Qe7 10. Nd5 Bxd2+ 11. Kxd2 Nxd5 12. exd5 Qxe2+ 13. Kxe2 Re8+ 14.
Kd2 Ne7 15. Bb5 c6 16. dxc6 bxc6 17. Bc4 Bg4 18. Nd4 c5 19. Nb5 d5 20. Bd3 Rab8
21. Nxa7 *
Position (FEN): 1r2r1k1/N3nppp/8/2pp4/5Pb1/3B4/PPPK2PP/R6R b - - 0 21
Black to move.
Themes:  Middlegame  
Puzzle rating: 1392
Best move: c4