const ver_base (Horizontal | Vertical Vertical)
const hor_base (Vertical | Horizontal Horizontal)

const up    ([- 0 -] ver_base)
const down  ([- 1 -] ver_base)
const left  ([- 0 -] hor_base)
const right ([- 1 -] hor_base)

const deck  Deck
const full  Full
# const wide  ([- 1 -] (Vertical | Horizontal Horizontal Horizontal))
const wide (
  3 <
    ([1 0 -] (Vertical | Horizontal Horizontal))
  ? (
      4 <
        ([1 1 -] (Vertical | Horizontal Horizontal Horizontal))
      ? ([- 1 -] (Vertical | Horizontal Horizontal Horizontal))
    )
)

const cols ([0 - -] Vertical)

const default left