Puzzle Game based on rotating corners to make a square and clear them

[fritzafella]

The board layout was fairly large, atleast 15x20 and each "corner" occupied 3 spaces in an L shape. Each time you move a corner, and I think you could only flip the over one of the 2 long edges, there was a chance a new corner would randomly spawn. Getting four corner s in a square would destroy them. I feel like the game is called "33 corners" because I seem to r emember a counter than turned red in the upper twenties and you'd lose if 33 corners spawn ed, but searching 33 corners yields nothing
Also I seem to remember you c haracter was a vaugely cat shaped... thing?
Also the aethestics are pretty dim, with lots of greys, blacks, and browns
The last time I ever saw this game was about 05 or 06, and was developed sometimes in the late 90s to early 2000s for Windows XP