DragonLance MageStones Board Game TSR 1990 D&D Complete
The board is a grid 7 x 9, with columns numbered 3-9, columns representing planes of reality, rows representing schools of magic.
The board "wraps" top to bottom, but not for the purposes of diagonal capture.Players roll 3d3 (six sided dice numbered 1-3 twice) and place their colored tokens on a space in the column matching the dice total.
The exception to this is where the three dice are all different, where the player misses a turn "distracted by events in the prime material plane." When a player rolls all three dice the same, they get another turn after placing their stone.
Captured stones are removed from the board and returned to their owner. First player to place all their stones wins.