Chess puzzle (Advantage)
Opening: Queens_Pawn_Game, Queens_Pawn_Game_Mason_Variation
Moves: 1. d4 d5 2. Bf4 Nf6 3. e3 e6 4. Nd2 Bd6 5. c3 O-O 6. Ngf3 Bxf4 7. exf4 a6 8.
Bd3 b5 9. h4 Bb7 10. g4 Nxg4 11. Bxh7+ Kxh7 12. Ng5+ Kg8 13. Qxg4 Qf6 14. h5
Qf5 15. Qg3 Nd7 16. h6 g6 17. O-O-O c5 18. dxc5 Nxc5 19. Ndf3 Nd3+ *
Position (FEN): r4rk1/1b3p2/p3p1pP/1p1p1qN1/5P2/2Pn1NQ1/PP3P2/2KR3R w - - 2 20
White to move.
Themes:  Middlegame  
Puzzle rating: 1013
Best move: Rxd3