['< sod > : morphy could have won a pawn by 8. qxb7 qb4 + or 9. qxb4 bxb4 +, but in keeping with his style he prefers rapid development over [ [ list of... chess terms # material | material ] ]. note that 8. bxf7 +?! qxf7 9. x qxb7 bc5! gives black dangerous counterplay for the rook. < eod > < sod > : morphy could have won a pawn by 8. qxb7 qb4 + when 9. qxb4 bxb4 +, but in keeping with his style he prefers rapid development over [ [ list of chess terms # material | def material ] ]. white can win material with 8. bxf7 + qxf7 at 9. qxb7, but black has dangerous defensive counterplay risks after 9... bc5! and without 10. qxa8 o - o or 10. qc8 + ke7 11. qxh8 6 bxf2 +. < eod >']