Chess puzzle (Advantage)
Opening: Nimzowitsch_Defense, Nimzowitsch_Defense_Other_variations
Moves: 1. e4 Nc6 2. d4 e6 3. Nf3 d6 4. c4 Nge7 5. Nc3 d5 6. Be3 dxe4 7. Nxe4 Nf5 8.
Bg5 Be7 9. Bxe7 Qxe7 10. Be2 O-O 11. O-O h6 12. Re1 b6 13. Nc3 a6 14. d5 Nd8
15. Qc2 Re8 16. Bd3 Qf8 17. dxe6 fxe6 18. Re2 Bb7 19. Bxf5 Bxf3 *
Position (FEN): r2nrqk1/2p3p1/pp2p2p/5B2/2P5/2N2b2/PPQ1RPPP/R5K1 w - - 0 20
White to move.
Themes:  Middlegame  
Puzzle rating: 1476
Best move: Bh7+