:: :: :: :::: /hook/core/oct1/sur :::::: dependencies :: :: :: /? 310 :: arvo version :: :: :: :::: :::::: semantics :: :: :: |% :: ++ board ,@ :: one-player bitfield ++ point ,[x=@ y=@] :: coordinate ++ game :: game state $: who=? :: whose turn box=board :: X board boo=board :: O board == :: --