On October 2, 2006 I found news regarding the release of this puzzle game on the 
Dead Hackers Society frontpage.
Here is a part of the README:
                Z N A X 
                -------
 (an other diskfiller game for Atari)
          Paradize - 10/2006
You  must  do  the  biggest  square, or rectangle ,by  clicking 4 tiles of  the same color.Once clicked, they disappear and  randomly  chosen  tiles  take  the place of the area done by the  selected tiles. The biggest area you select, the bigger your score will be.
2 game  modes are  available : 2 mn and 5 mn . Only the  time during  the  game will  change, and  a specific highscore table is dedicated to each mode.
 
Press  F10  during game to exit  to the highscore table.
Screenshots:

Title

Menu

Game

Game Over

Highscore
To check out this game yourself, download the 
STeem Engine emulator and 
the game itself. Just copy the extracted archive contents to your STeem virtual HDD.