const hor_base (Horizontal | Vertical Vertical)
const ver_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 cols  ([0 0 0] Vertical)

const default left