The die with six faces

or, The Red and the Black

The sum of the values of the faces of the die
must equal twenty-one before you can try.
Wait until two in a row is hoed by your foe
when you roll the same value twice in a row.

?

once 10 times 100 times 1000 times

Face	Value	Red		Black		*
1		0	0	0	0	0	0
2		0	0	0	0	0	0
3		0	0	0	0	0	0
4		0	0	0	0	0	0
5		0	0	0	0	0	0
6		0	0	0	0	0	0
*		0	0	0	0	0	0