http://www.members.shaw.ca/gf3/circle-the-cat.html
Try to keep the cat from escaping the grid by encircling it with the dots.
Damn cat!
Scat, darn cat!
It’s a tricky game, I can only get it maybe about 1:8 or 1:10 tries…
Well, I thought it was mundane and pointless.
I’ve been playing this one for months. I’ve gotten it down to a 95% science. The 5% is when I screw up on a specific move.
Any hints?
Oh, I see.
Never mind.
lol, finally got him after maybe fifteen tries!
Seems to depend a lot on the initial roll
Not as much as you think. 
1st try! I rule at cat-circling.
Put your first click at the edge, wherever you see a potential weakness in the starting configuration.
The direction the cat moves is its intended escape route, so the next clicks should be spaced out one space apart at the edge the cat is moving towards. See here. The spacing ensures that wherever opening the cat tries to move to, you can close it off before he gets to it.
I circled the cat on my first try too. 
That’s exactly what I figured out last night right after I posted.
Upon further review… I do not at all rule at cat-circling.
You are the worst person in the world for introducing me to this. I’ve tried twice, and I haven’t gotten it. I hate that stupid cat.
I got him on the first try also. I shall never attempt this game again, so I retire undefeated! 100% baby!
God, it took me like six freaking times. I’m dumber than a cat. 
It’s a smart cat.
Took me two tries.
Bah. Got it on the fifth try after figuring out that you have to click far away from the cat, and trick it into a dead-end.