2x2 board
Keywords: Theory
A 2x2 Go Board:
Bill: Is there any rule set currently in use that has a superko rule that allows
?
Tas: How about:
prisoners:
This can go on four times before stopped by superko, but neither player gains. Can a player cleverly use superko to his advantage?
Assuming the superko rule it's possible for black to end the game here. The position is seki.
Tas: But no advantage...
impu1se: Presumably black wins with area scoring.
Bill Taylor proved that under area scoring the perfect play score is 1. The proof consists of two parts: 1) Black wins by at least 1 point. 2) Black wins by at most 1 point.