Sioux Denim
My best grades are: UK 7k, Euro 7k, KGS 5k.
My two-penneth on loopy positions:
Beer ko rule - my solution to the SuperKo problem:
If the whole board position repeats during the game, both players WIN, but must buy all other players in the tournement a beer. (Similar to a hole-in-one in golf).
I especially like the idea that as neither player will want to buy beer, they'll want to resign. However, they'd rather their opponent resign first. This is a sort of Go players' prisoners' paradox :)
I invented SquareSquared. Fame and fortune are nearly mine!