The is a relative to Ataxx.
The game was made by Keith Carter.
There are 3 types of moves:
A drop of a stone on an empty adjacent (orthogonal or diagonal) empty cell;
An orthogonal or diagonal slide of a stone already on board (like a chess Queen) to an empty cell;
A drop of a stone on any empty cell.
Any opponents adjacent stones to the new piece (either through growth or slide) are
flipped to the moving player's color as in othello.
The third option (simple drop) do not flip the color of adjacent stones.
Wins the player with most stones when the board is filled.