▁Despite ▁T arr as ch ' s ▁criticism , ▁ 4 . N g 5 ▁has ▁remained ▁a ▁popular ▁choice ▁for ▁White ▁and ▁has ▁been ▁played ▁by ▁world ▁champions ▁Wilhelm ▁Ste init z , ▁Bobby ▁Fischer , ▁An atol y ▁Kar p ov , ▁Gar ry ▁Kas par ov , ▁and ▁Vis wan athan ▁An and . ▁ ▁Main ▁line : ▁ 4 ... d 5 ▁ ▁After ▁ 4 ... d 5 ▁White ▁has ▁little ▁option ▁but ▁to ▁play ▁ 5 . ex d 5 , ▁since ▁both ▁the ▁bishop ▁and ▁e 4 - pa wn ▁are ▁attacked . ▁ ▁Then ▁Black ▁usually ▁plays ▁ 5 ... Na 5 ▁but ▁there ▁are ▁other ▁options : ▁ ▁The ▁re capt ure ▁ 5 ... N x d 5 ▁is ▁extremely ▁ ▁ris ky . ▁Albert ▁P ink us ▁tried ▁to ▁bol ster ▁this ▁move ▁with ▁analysis ▁in ▁ 1 9 4 3 ▁and ▁ 1 9 4 4 ▁issues ▁of ▁Ch ess ▁Review , ▁but ▁White ▁gets ▁a ▁strong ▁attack ▁with ▁either ▁the ▁safe ▁L ol li ▁Att ack ▁ 6 . d 4 ▁or ▁the ▁sacrific ial ▁Fried ▁Liver ▁( or ▁F eg at ello ) ▁Att ack ▁ 6 . N xf 7 ▁K xf 7 ▁ 7 . Q f 3 + ▁Ke 6 ▁ 8 . N c 3 . ▁These ▁variations ▁are ▁usually ▁considered ▁too ▁difficult ▁for ▁Black ▁to ▁defend ▁over ▁the ▁board , ▁but ▁they ▁are ▁sometimes ▁used ▁in ▁correspond ence ▁play . ▁Lawrence ▁Tr ent ▁describes