4 ▁issue ▁of ▁Deutsche ▁Sch ach zeit ung . ▁In ▁ 1 9 0 7 ▁Fritz ▁himself ▁wrote ▁an ▁article ▁about ▁his ▁move ▁in ▁the ▁Swedish ▁journal ▁T id sk rift ▁för ▁Sch ack . ▁White ' s ▁best ▁reply ▁is ▁ 6 . c 3 , ▁when ▁the ▁game ▁often ▁continues ▁ 6 ... b 5 ▁ 7 . B f 1 ▁N x d 5 ▁ 8 . Ne 4 ▁or ▁ 8 . h 4 . ▁ ▁After ▁ 5 ... Na 5 , ▁Paul ▁Mor phy ▁would ▁play ▁to ▁hold ▁the ▁g amb it ▁pa wn ▁with ▁ 6 . d 3 . ▁The ▁Mor phy ▁Vari ation ▁( or ▁K ies er itz ky ▁Att ack ) ▁has ▁not ▁been ▁popular , ▁since ▁it ▁has ▁long ▁been ▁known ▁that ▁Black ▁obtain s ▁good ▁ch ances ▁for ▁the ▁pa wn ▁with ▁ 6 ... h 6 ▁ 7 . N f 3 ▁e 4 ▁ 8 . Q e 2 ▁N xc 4 ▁ 9 . dx c 4 ▁B c 5 . ▁( B ron stein ▁once ▁tried ▁the ▁piece ▁sacrifice ▁ 8 . dx e 4 ! ? ▁with ▁success , ▁but ▁its ▁sound ness ▁is ▁doubt ful .) ▁ ▁Instead , ▁White ▁usually ▁plays ▁ 6 . B b 5 + , ▁when ▁play ▁usually ▁continues ▁ 6 ... c 6 ▁( 6 ... B d 7 ▁is ▁also ▁possible ) ▁ 7 . dx c 6 ▁b xc 6 ▁ 8 . Be 2 ▁h