Fencer: I think what Pythagoras means is how random is the placement of the non playable squares. Is it possible to have the A1 square be an open square where you can place a stone, but the A2, B1 and B2 squares are closed squares. Or to have any edge square such as D7 open but C7 and E7 plus D6 be closed squares.
(hide) If you don't want other users to know what you are doing you can change into cloak mode in Settings (paying members only). (pauloaguia) (show all tips)