# OD1P - July 28 Problem / Solution2

Sub-page of OD1PJuly28Problem
Black first, White dies

We shall start off from instead...

The solution is presented below.

Discussions welcome.

--unkx80

Tesuji

BillSpight: is tesuji, but makes a and b miai for a second eye. This is a diagram in the Sekiyama book to show that is a mistake.

However, it looks like the vulgar play works.

# Solution!!!

That very interesting tesuji!
Variation 1 (a)

If is played at instead, then White takes the stone at and it becomes a ko. ( at produces another ko; I've added it as "Variation 1 (c)" below. Dieter)

Variation 1 (b)

After the placement at , a and b are miai. White is dead.

Variation 1*: Ko (added by Dieter)

If as marked, then at a. It is a ko.

Variation 2 (a)
Variation 2 (b)

( at )

With , White dies with a farmer's hat eye shape.

Variation 3

This variation reverts to Variation 1.

Finally

Finally, White's resistance at is useless. descends, and a and b are now miai.

--unkx80

OD1P - July 28 Problem / Solution2 last edited by CharlesMatthews on June 9, 2003 - 08:38