Scripting errors in the previous comments seems to have been fixed. I highly recommend locking the bowls before switching to different sized boards.

Also a quick tutorial for those wanting to use:
- arrows only work after a board state has been saved
- If you click on any button before saving an error will appear.
- Restore will recreate the last saved state

Restore seems to be giving errors, so not sure if save actually saves. Would be cool if it automatically removed opponent's piece and kept track of the score.

What is up with this table lol where am I supposed to sit there are no colors

test 1: play 2 moves and hit back button, all moves removed, and get global scripting error, null exception.
test 2: play two moves and hit save button, click back button still getting null error message but does not remove all stones.
test 3: repeat test 2 and click restore, game is not restored
test 4: click 9x9 button small board is displayed but the bowls are upended.
test 5: repeat test 4 and fix bowls near edge of board (not edge of table), click 13x13 button. new board is created old board is removed, new board displaces board and causes them to fall through the table. message says white is destroyed, message says black is destroyed. bowls are not restored, game cannot continue

Clearly there are several bugs to be fixed

seems to be a few things wrong with your script.
Board size button work but nothing else.

TTS update m,aybe?