Chess puzzle (Advantage)
Opening: Queens_Pawn_Game, Queens_Pawn_Game_Mason_Attack
Moves: 1. f4 d5 2. d4 c5 3. c3 cxd4 4. cxd4 e6 5. Nf3 g6 6. e3 Bg7 7. Bd3 Ne7 8. O-O
O-O 9. Nbd2 Nbc6 10. a3 a6 11. Ng5 h6 12. Ngf3 Kh7 13. Ne5 Nxe5 14. fxe5 f6 15.
Nf3 Nc6 16. exf6 Bxf6 17. Qc2 Qe8 18. Bd2 e5 19. dxe5 Nxe5 *
Position (FEN): r1b1qr2/1p5k/p4bpp/3pn3/8/P2BPN2/1PQB2PP/R4RK1 w - - 0 20
White to move.
Themes:  Middlegame  
Puzzle rating: 1316
Best move: Nxe5