I have been in touch with Christian now, and he is happy to have the game included in Ludii.
I have not written the info metadata, but the game logic is complete.
The only thing that needs to be added to a general description of the rules is a note on how growing is implemented in Ludii:
When you grow your groups, you repeatedly add a grey stone adjacent to a friendly group – making sure to never place so that a friendly group is adjacent to more than one grey stone – then, when no more grey stones can be placed, all grey stones are replaced with stones of your color.
I have not written the info metadata, but the game logic is complete.
The only thing that needs to be added to a general description of the rules is a note on how growing is implemented in Ludii:
When you grow your groups, you repeatedly add a grey stone adjacent to a friendly group – making sure to never place so that a friendly group is adjacent to more than one grey stone – then, when no more grey stones can be placed, all grey stones are replaced with stones of your color.