Tommy is an Alien of the outer space called South-Dakota. He has created a lot of games for Dos, that can be acquired for around 10 $ by 12. One of them, the number 191B, is called Tommy's Assimilation and has two modes. One is an Ataxx mode. The copyright is dated 1997, but it is older (between 1991 and 1995, surely...).
Many parameters. Board size from 5 to 9 lines, from 5 to 9 columns. Two sorts of board (the best has black and white squares), several sorts of colours. With or without blocks (not symmetrical, called "obstacles"). Classical beginning with 2 pieces against 2, or 1 against 1, even by choosing himself the beginning positions.
Nine levels. Only one, the first, is quick, but already good. However, it is possible to short the thinking times. Ability to automatically save and load games, when exiting and beginning game.