Nice to see a board game implementation using the limitations of the GB! This is a simple but effective idea and I like that you use bluff mechanics common to board games as part of how this works. The French TDF theming is a nice flavour too. It would be fun to try this with some AI, but that sort of undermines the fun of the J'Accuse mechanic. Hmm, otherwise for constructive feedback, the only thing I can think of is that it would be cool if the die animated to the correct value following rolling to provide visual feedback to the player. Great work!