Die formula needed, my brain hurts :)

Hi all! I'm trying to figure out a special kind of "exploding" dice and cant get it to work. Function: when a 6 is rolled on a d6, reroll it and add another d6 to the pool. When there are no more 6 left you add up the score. Example: 5d6 ended as 1, 1, 3, 4 and 6. the 6 is rerolled and a dice is added and ended with 2 and 6. the other six is rerolled and a dice is added again and they end with 3 and 4. The end score is 1, 1, 2, 3, 3, 4 and 4 = 18 Its a system from a Swedish rpg called Eon known as OB (obegränsad, unlimited). I been trying for about an hour now with rerolls and explosive but can seem to get it to work. Anyone out there have idea how this could be solved? Thank you for your time.

Not possible without using the API I believe.

It sounds like the best way to solve this, without the devs adding your new type of explosive dice, is to just use the already-existing explosive dice and don't worry too much about it. The distribution of values will be a little different, but probably not by enough to care about.

closest you can get right now is /r 5d6r6 that will drop the original 6s and add a new die for each 6 that was rolled then count how many 6s were rolled and roll those again

I think Roger's solution is probably the best without resorting to the API.