Chess puzzle (Advantage)
Opening: Benoni_Defense, Benoni_Defense_Benoni_Gambit_Accepted
Moves: 1. d4 c5 2. dxc5 e6 3. e4 Bxc5 4. Nc3 Qb6 5. Qf3 Bb4 6. Be3 Bxc3+ 7. bxc3 Qa5
8. Bd2 Qc5 9. Ne2 Nc6 10. Nc1 Nf6 11. Nd3 Qd6 12. Be2 O-O 13. O-O Ne5 *
Position (FEN): r1b2rk1/pp1p1ppp/3qpn2/4n3/4P3/2PN1Q2/P1PBBPPP/R4RK1 w - - 13 14
White to move.
Themes:  Middlegame  
Puzzle rating: 2241
Best move: Qf4