Chess puzzle (Advantage)
Moves: 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e5 5. Nf3 a6 6. Nc3 Bb4 7. Bd3 h6 8. O-O
Nf6 9. Bd2 O-O 10. a3 Bc5 11. Re1 d6 12. Be3 Bg4 13. Bxc5 dxc5 14. Be2 Qb6 15.
Na4 Qa5 16. Nc3 Qb6 17. Rb1 Rfd8 18. Nd5 Nxd5 19. exd5 Ne7 20. c4 Nc6 21. b3
Nd4 *
Position (FEN): r2r2k1/1p3pp1/pq5p/2pPp3/2Pn2b1/PP3N2/4BPPP/1R1QR1K1 w - - 1 22
White to move.
Themes:  Middlegame  
Puzzle rating: 1212
Best move: Nxd4