. ▁ ▁If ▁the ▁c aster ▁n icks ▁on ▁the ▁first ▁throw , ▁he ▁wins ▁an ▁amount ▁equal ▁to ▁his ▁st ake . ▁After ▁the ▁first ▁throw , ▁the ▁c aster ▁wins ▁his ▁st ake ▁if ▁he ▁gets ▁his ▁chance ▁before ▁his ▁main . ▁ ▁After ▁the ▁first ▁throw , ▁the ▁c aster ▁( and ▁others , ▁in ▁side ▁bet s ) ▁may ▁w ager ▁an ▁additional ▁sum ▁that ▁the ▁chance ▁will ▁come ▁before ▁the ▁main . ▁These ▁bet s ▁are ▁made ▁at ▁odd s ▁determined ▁by ▁the ▁relative ▁proport ions ▁of ▁the ▁main ▁and ▁the ▁chance : ▁ ▁For ▁example , ▁with ▁an ▁odd s ▁st ake ▁of ▁£ 1 0 , ▁a ▁main ▁of ▁ 7 ▁and ▁a ▁chance ▁of ▁ 5 , ▁a ▁c aster ▁stands ▁to ▁win ▁£ 1 5 ▁( 3 / 2 ▁× ▁£ 1 0 ); ▁with ▁the ▁same ▁st ake , ▁a ▁main ▁of ▁ 5 ▁and ▁a ▁chance ▁of ▁ 6 , ▁he ▁could ▁win ▁£ 8 ▁( 4 / 5 ▁× ▁£ 1 0 ). ▁ ▁Pro b ability ▁of ▁winning ▁For ▁each ▁main ▁the ▁probability ▁of ▁winning ▁can ▁be ▁calculated : ▁ ▁In ▁some ▁reports ▁on ▁the ▁rules ▁of ▁the ▁game , ▁the ▁main ▁is ▁determined ▁randomly ▁by ▁toss ing ▁the ▁dice ▁until ▁a ▁valid ▁main ▁appears . ▁In ▁this ▁case ▁the ▁overall ▁player ▁dis adv antage ▁is ▁ 1 . 8 4 %. ▁If ▁the ▁c aster ▁can ▁choose ▁a ▁main , ▁he ▁should ▁always ▁choose ▁ 7 ▁( result ing