Chess puzzle (Advantage)
Opening: French_Defense, French_Defense_Normal_Variation
Moves: 1. e4 e6 2. d4 Be7 3. Nf3 Nf6 4. Nc3 a6 5. Be3 Bb4 6. Bd3 Nc6 7. a3 Bf8 8. O-O
Be7 9. Qe2 Ng4 10. h3 Nxe3 11. fxe3 O-O 12. d5 Nb8 13. Qf2 d6 14. e5 dxe5 15.
Nxe5 Bf6 16. Ng4 Be7 17. e4 Nd7 18. b4 a5 19. Qg3 axb4 *
Position (FEN): r1bq1rk1/1ppnbppp/4p3/3P4/1p2P1N1/P1NB2QP/2P3P1/R4RK1 w - - 0 20
White to move.
Themes: Pin Middlegame  
Puzzle rating: 1516
Best move: Nh6+