Gokyo Shumyo, Section 1, Problem 1 / Solution

Variations: Dieter

Main line  

This problem is an illustration of the proverb: "In a symmetrical position, play the symmetric point".

White must play W1 in order to live. Any other move fails.

B2 and B4 only go to show that White makes eyes at the marked points. B2 and B4 should be held in reserve as ko threats. Please note that they are loss making threats.

Var 1  

W1 fails.

After B2, White needs both a and b. White can't play two moves in a row, so her group is dead.

White starting a also fails; it is the mirror image of W1.

Var 2  

B2 and B4 make a bent four in the corner shape, killing White. We assume that White can't escape at a.

See also: Bent five on the second line in the corner


Gokyo Shumyo, Section 1, Problem 1 / Solution last edited by hnishy on January 12, 2023 - 00:50
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