const int x;

// probability of throwing x
Pmin=? [ F s1=7 & s2=7 & d1+d2=x ]
Pmax=? [ F s1=7 & s2=7 & d1+d2=x ]

// min/max expected cost to complete
Rmin=? [ F s1=7 & s2=7 ]
Rmax=? [ F s1=7 & s2=7 ]