Gokyo Shumyo, Section 1, Problem 17 / Solution
Main line: Hashimoto Utaro 9p
Variations: unkx80, Dieter Verhofstadt 1k
Later, if , then captures the stone and lives.
Leaving out the hane enables Black to play hane himself. The most White can get out of it is to starting a (terribly disadvantageous) ko at a.
The throw-in at and the atari at will throw the entire black group into a ko.
If White connects the ko at , the atari at blows the eyeshape away. If White doesn't, a black capture at continues the ko.
White here doesn't threaten anything, giving Black the time to make an eye false at .
Go to Problem 18
Back to Kanazawa Tesuji Series