Chess puzzle (Advantage)
Opening: Sicilian_Defense, Sicilian_Defense_Four_Knights_Variation
Moves: 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Nf6 6. Be3 Bb4 7. Qd2 h6 8. f3
O-O 9. O-O-O d5 10. e5 Nd7 11. f4 f6 *
Position (FEN): r1bq1rk1/pp1n2p1/2n1pp1p/3pP3/1b1N1P2/2N1B3/PPPQ2PP/2KR1B1R w - - 0 12
White to move.
Themes:  Opening  
Puzzle rating: 1390
Best move: Nxe6