3dfibs is definitly broken - I used to beat it 80% time - now I'm lucky to win 1 in 10.
Just used Jellyfish for the first time and beat it 5 out of 5 so its not my playing.
Like a previous poster I also get the bug where your first roll won't work, then you roll some new dice.
Another one is interesting bug that works in your favour - try messing with lots of doubling - you get an extra turn!
eg, the computer doubles and you double and double again and then throw 5-2 - you get to move 5 then 2 then 2 again! (always the lower dice value!).
And as another poster said - if you need a 2 to get out, you will probably get 6-6 three times in a row, then 4-5
6-1 and every conbination apart from a 2. As soon as the computer locks the 2, you get 2s!
If its a simple run off, the computer will get consistantly high dice while you get 2-1 three times in a row.
I suspect that the programme works out what dice would be favourable for the next move and then weights the probability of it getting those numbers depending on your skill level - so the best roll you could get might need to be 4-3, it lowers the chances of you getting it by adding extra useless numbers like 6-6 to the 'pot' it