Chess puzzle (Advantage)
Opening: Queens_Gambit_Declined, Queens_Gambit_Declined_Austrian_Defense
Moves: 1. d4 d5 2. c4 c5 3. Nf3 Nc6 4. g3 cxd4 5. Nxd4 g6 6. Bg2 Nf6 7. Nxc6 bxc6 8.
O-O Bg7 9. Nc3 Bb7 10. Rb1 O-O 11. b3 Re8 12. Bb2 e5 13. Re1 d4 14. Ne4 Nxe4
15. Bxe4 f5 16. Bg2 Rc8 17. e4 dxe3 18. Rxe3 Qxd1+ 19. Rxd1 e4 *
Position (FEN): 2r1r1k1/pb4bp/2p3p1/5p2/2P1p3/1P2R1P1/PB3PBP/3R2K1 w - - 0 20
White to move.
Themes:  Middlegame  
Puzzle rating: 1190
Best move: Bxg7