==============================================================
0  1  2  3  4  5  6  7  8  9  10 11 12 13                   20
|  -  -  -  -  |  -  -  -  -  |  -  -  |  -  -  -  -  -  -  |
                                       x(13)
·····························································
                                    o(12)
|  -  -  -  -  |  -  -  -  -  |  -  -  |  -  |  -  -  -  -  |
0              5              10       13    15             20
==============================================================
(Standard roll: Pick first. Double/half roll: Pick best/worst.)


Analysis of the first roll (x)
------------------------------
Unless your stack score is 13 or the DN is 12 or less,
this is a fumble!


Analysis of the second roll (o)
------------------------------
Min score for regular: 12.
Max DN for special:    11.