No, no, noooo... It is not an Ataxx, even not a nutsy Ataxx... It is
something else, a new variant. See the picture
which shows how all diagonal moves are forbidden.
Horizontally or vertically, but not diagonally
However, there is the standard 7x7 board, the colours, the beginning
positions, the blocks (3 configurations including the one without blocks), the
duplication by going only on the near square, else a jump. The pieces have a
changing colour, but here only when they touch an opponent in the horizontally
or vertically direction.
Alas, it is only to play between two players, by sharing the
mouse...
The author is called Louis Thomas (U.S.A.) and you play at the Nutsy
game on his
page.
As it is in Dhtml, it is not very difficult to recover the game.