Chess puzzle (Advantage)
Opening: Russian_Game, Russian_Game_Stafford_Gambit
Moves: 1. e4 e5 2. Nf3 Nf6 3. Nxe5 Nc6 4. Nxc6 dxc6 5. e5 Ne4 6. d3 Bc5 7. dxe4 Bxf2+
8. Ke2 Qxd1+ *
Position (FEN): r1b1k2r/ppp2ppp/2p5/4P3/4P3/8/PPP1KbPP/RNBq1B1R w kq - 0 9
White to move.
Themes:  Middlegame  
Puzzle rating: 637
Best move: Kxd1