Chess puzzle (Advantage)
Opening: Grunfeld_Defense, Grunfeld_Defense_Three_Knights_Variation
Moves: 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. e3 O-O 6. Bd3 dxc4 7. Bxc4 c5 8. O-O
cxd4 9. Nxd4 a6 10. Qb3 b5 11. Be2 e5 12. Nf3 Be6 13. Qc2 Nc6 14. Rd1 Nd5 *
Position (FEN): r2q1rk1/5pbp/p1n1b1p1/1p1np3/8/2N1PN2/PPQ1BPPP/R1BR2K1 w - - 6 15
White to move.
Themes:  Middlegame  
Puzzle rating: 1830
Best move: Nxd5