Under the Stones Problem 6 / Solution

Solution  

and sets up the under the stones tesuji.

Solution  

But the throw-in at is also a tesuji to circumvent the under the stones tesuji.

Solution  

The solution is a ko, with White taking the ko first.

Variation  

Things get easy when descends, all Black has to do is to continue with the original plan.

Variation  

This is the standard end result of the under the stones tesuji.

Failure

Failure  

Suppose and proceeds with the under the stones tesuji...

Failure  

White lives after , since Black cannot approach at a.

Comment on Beginner Exercise 91

The solution page of Beginner Exercise 91 contained a reference to the solution of this problem.

So, we make the comparison for Beginner Exercise 91:

• The solution of Beginner Exercise 91 is simple and achieves unconditional life.
• Using the under the stones technique only results in a ko for life, as illustrated by the solution to this problem.

Therefore, the solution is superior to using the under the stones technique.