grid
A grid in board games is a board organized as a regular array of spaces or intersections that gives position a repeatable geometric structure [@britannica2026chess; @britannica2026go].
Grid boards matter because they make spatial relation legible. Distance, direction, enclosure, and local pattern can be read directly from the arrangement of lines or cells. That regularity supports both simple movement systems and deep positional play, whether the game uses occupied squares as in chess or open intersections as in weiqi [@britannica2026chess; @britannica2026go].