▁only ), ▁the ▁player ▁can ▁split ▁the ▁two ▁cards , ▁even ▁if ▁they ▁are ▁different ▁values . ▁After ▁a ▁power - split , ▁all ▁regular ▁double - down ▁and ▁split ▁actions ▁are ▁allowed , ▁but ▁power - split ▁and ▁power - double ▁options ▁are ▁no ▁longer ▁allowed . ▁ ▁External ▁links ▁Method ology ▁of ▁Power ▁Black jack ▁ ▁Category : Black jack <0x0A> </s> ▁Ul ban ▁Bay ▁( Russ ian : ▁Ul ' b ans ky ▁Z al iv ) ▁is ▁a ▁bay ▁in ▁the ▁north western ▁Sea ▁of ▁Ok hot sk , ▁just ▁south ▁of ▁the ▁Sh ant ar ▁Islands . ▁It ▁is ▁a ▁southern ▁branch ▁of ▁Academy ▁Bay ▁to ▁the ▁north . ▁The ▁Sy ran ▁and ▁Ul ban ▁rivers ▁flow ▁into ▁its ▁head . ▁ ▁Geography ▁ ▁Ul ban ▁Bay ▁is ▁entered ▁between ▁Cape ▁Uk ur un ru ▁to ▁the ▁west ▁and ▁Cape ▁T uk urg u ▁to ▁the ▁east , ▁which ▁are ▁separated ▁by ▁ 4 3 . 4 ▁km ▁( about ▁ 2 7 ▁mi ). ▁The ▁bay ▁itself ▁is ▁nearly ▁ 6 4 ▁km ▁( 4 0 ▁mi ) ▁deep ▁in ▁a ▁south w ester ly ▁direction . ▁Ice ▁usually ▁leaves ▁Ul ban ▁Bay ▁by ▁mid - ▁or ▁late ▁June , ▁but ▁in ▁some ▁years ▁may ▁remain ▁until ▁August . ▁The ▁bay ▁has ▁no ▁safe ▁anch orage ▁and ▁is ▁exposed ▁to ▁n ortheast ▁wind s . ▁T ides ▁are ▁sem idi urn al . ▁Spr ings ▁rise ▁ 4 . 9 ▁m ▁( 1 6 ▁ft ) ▁in