Kanazawa Problem 2 / Solution
Main line: Hashimoto Utaro
Variations: Dieter
![[Diagram]](../../diagrams/25/d5ded96aab48a27784efc523179e84cd.png) | Main line |
The points a and b are miai for life.
Related proverb: strange things happen at the one-two point - in this case you need to know which of the two 1-2 points, of course.
![[Diagram]](../../diagrams/17/7466caca0ff9dcd47fdce028c9f0d5f8.png) | 2 and 3 are miai (i) |
Black has two sure eyes at a and b.
![[Diagram]](../../diagrams/21/4cd6cd47e61447df639f514fb07ce00b.png) | 2 and 3 miai (ii) |
If White next blocks at a, Black makes a big eye at b. And if White draws out at b, Black enlarges the eye with a.
NB: if White has a stone on one of the circled points, her move at b suddenly works and Black is dead, although a lot of aji remains, because he can break out into the centre (in this position).
![[Diagram]](../../diagrams/13/ba2db516df5458f14399d7cdfc2db39b.png) | White's attempt to escape fails |
Grauniad: to followed by B a, W b and B c shows that White cannot escape without an extra stone to right. Thanks to Jasonred for clarifying this.
![[Diagram]](../../diagrams/12/9daa2cbf0e7cb34ac6110dcec4acb534.png) | Wrong (i) |
is wrong. After , and seem to make the most of it, but when White cuts at it's all over.
![[Diagram]](../../diagrams/52/218cb04a0ff7538c9182f78e5d029c4b.png) | Wrong (ii) |
If Black plays at the other 1-2 point, it is also wrong. and are miai for the kill. After , Black can play neither a nor b because of shortage of liberties.
![[Diagram]](../../diagrams/7/3c2b8ad009986741d376d590e4c11c62.png) | Wrong (iii) |
here is also wrong. White can even respond at ease to the hanes at and , because whatever Black does, the points a and b remain miai for the kill.
![[Diagram]](../../diagrams/0/274f5e992415af774a8991d408716559.png) | Wrong (iv) |
Finally, what about making the corner eyespace as big as possible, with here? White plays hane at , threatening to capture three stones. Black has to make a solid connection. This is as in Kanazawa Problem 1, but with a white stone at , and Black is dead.
![[Diagram]](../../diagrams/42/2453eecd8f65e5ef568699f641b530a2.png) | What about this? (iv) |
White at a kills the black group with two more white stones.
![[Diagram]](../../diagrams/17/ebc92e5db0f6ce8db551a61ecf2ecbea.png) | Wrong (iv) suggestion. |
unkx80: It might be better to have block on the outside.
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"Kanazawa Problem 2 / Solution" at
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2004 the Authors, published under the OpenContent License V1.0.
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