Chess puzzle (Advantage)
Opening: Sicilian_Defense, Sicilian_Defense_McDonnell_Attack
Moves: 1. e4 c5 2. f4 d6 3. Nf3 Nc6 4. Bc4 Nf6 5. d3 e6 6. a3 Be7 7. Nc3 a6 8. h3 b5
9. Ba2 O-O 10. O-O Bd7 11. e5 dxe5 12. fxe5 Ne8 13. Ne2 f6 14. Bf4 fxe5 15.
Nxe5 Bd6 16. Nxd7 Qxd7 17. Bd2 Nf6 18. Nc3 Nd5 19. Qe2 Rxf1+ *
Position (FEN): r5k1/3q2pp/p1nbp3/1ppn4/8/P1NP3P/BPPBQ1P1/R4rK1 w - - 0 20
White to move.
Themes:  Middlegame  
Puzzle rating: 1423
Best move: Rxf1