Chess puzzle (Advantage)
Opening: Benko_Gambit, Benko_Gambit_Other_variations
Moves: 1. d4 Nf6 2. c4 c5 3. d5 b5 4. b3 a6 5. Bb2 g6 6. Nf3 Bg7 7. Qc2 d6 8. Nbd2 O-O
9. e4 Nbd7 10. Be2 bxc4 11. bxc4 Rb8 12. O-O Nb6 13. e5 dxe5 14. Bxe5 Rb7 15.
Rab1 Bf5 16. Bd3 Bxd3 17. Qxd3 Qd7 18. Qe3 Rc8 19. Ne4 Nxe4 *
Position (FEN): 2r3k1/1r1qppbp/pn4p1/2pPB3/2P1n3/4QN2/P4PPP/1R3RK1 w - - 0 20
White to move.
Themes:  Middlegame  
Puzzle rating: 1379
Best move: Qxe4