False ko threats are usually bad. However, in the 2010 Chinese Go League, Korean 9P Choi CheolHan intentionally played a “false” ko threat.
Graph 1.
Black is Choi 9p. White (Liu Xing 7P) just took the Ko on the upper right corner. If we count ko threats, it is clear that black does not have enough ko threats to win this ko.
Graph 2.
Black 279 is Choi 9p’s move. The move itself is not a ko threat, but it is the winning move. If you read out and count the ko threats, you will know why.
this is awesome. never thought i’d see this!
Is it because it is a two step ko? So black can play a real ko after white has to play an atari.
Can I know what program do you use for that picture?