Chess puzzle (Advantage)
Opening: Scotch_Game, Scotch_Game_Haxo_Gambit
Moves: 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bc4 Bc5 5. c3 Nge7 6. cxd4 Bb6 7. d5 Nb4 8.
O-O O-O 9. a3 Na6 10. b4 c6 11. b5 cxd5 *
Position (FEN): r1bq1rk1/pp1pnppp/nb6/1P1p4/2B1P3/P4N2/5PPP/RNBQ1RK1 w - - 0 12
White to move.
Themes:  Opening  
Puzzle rating: 1449
Best move: exd5