For up to two of the four variables above, you may give a range of values. In other words, you can say that you want to roll anywhere from four to six dice for a target number of six, you want from one to six successes and you do not want to reroll. For this example, you would enter 4-6 in the 'Number of Dice' box, 6 in the 'Target Number' box, 1-6 in the 'Successes' box and 0 in the 'Rerolls' box.

To enter a range, use the syntax A-B where A is the start of the range and B is the end of the range. No more than two of the values may be ranged.