How do I fix the statistical distribution of using 3 dice to handle Chance and Community cards in Monopoly?
If I understand it correctly, you're looking to generate a uniformly distributed random integer in the range 1-16 using only regular d6s.
You'll need two distinguishable dice; if you don't have distinguishable dice, then roll one die, note the result and then one die again. Call the dice &quot;die A&quot; and &quot;die B&quot;.

Map the result of die A as follows: 1-2 =&gt; 0, 3-4 =&gt; 6, 5-6 =&gt; 12
Add die B to the result of step 1 - you now have an integer in the range 1-18.
If your total is 17 or 18, go all the way back to step 1. Do not just re-roll die B until you get a value of 1-4.