Chess puzzle (Advantage)
Opening: Zukertort_Opening, Zukertort_Opening_Queenside_Fianchetto_Variation
Moves: 1. Nf3 b6 2. c4 Bb7 3. b3 g6 4. Bb2 f6 5. g3 Bg7 6. Bg2 Nh6 7. O-O O-O 8. d3 c5
9. Nbd2 d5 10. cxd5 Qxd5 11. Nh4 Qd7 12. a3 f5 13. Bxg7 Kxg7 14. Ra2 Nc6 15.
Nc4 Nd4 16. Qa1 Kg8 17. Ne5 Qc7 18. Rd2 *
Position (FEN): r4rk1/pbq1p2p/1p4pn/2p1Np2/3n3N/PP1P2P1/3RPPBP/Q4RK1 b - - 9 18
Black to move.
Themes:  Middlegame  
Puzzle rating: 1690
Best move: Bxg2