Chess puzzle (Advantage)
Opening: Queens_Pawn_Game, Queens_Pawn_Game_Colle_System
Moves: 1. d4 Nf6 2. Nf3 d5 3. e3 Bf5 4. Bd3 Bxd3 5. Qxd3 c6 6. O-O e6 7. c4 Be7 8. Nc3
O-O 9. c5 Nbd7 10. b4 Qc7 11. a3 e5 12. dxe5 Nxe5 13. Nxe5 Qxe5 14. f4 Qh5 15.
Bb2 Rae8 16. Rae1 Ne4 17. Nxe4 dxe4 18. Qd7 Bh4 19. g3 Rd8 *
Position (FEN): 3r1rk1/pp1Q1ppp/2p5/2P4q/1P2pP1b/P3P1P1/1B5P/4RRK1 w - - 1 20
White to move.
Themes:  Middlegame  
Puzzle rating: 1778
Best move: Qh3