Assuming your dice rolls are to be identically and independently distributed (likely yes, as your dice do not have memory), you can use a variant of the Von Neumann extractor if you really care:
- assume any 3 digits (say 1/2/3) are 0
- the rest (4/5/6) are 1
- roll two dice, and check the two bits. if they are the same, discard them, if they are not, use the first bit
for example:
11 01 10 00 11 01 10 10 01 00 01 00 becomes
- 0 1 0 - 0 1 1 0 - 0 -
