Beginner Exercise 19 / Solution
![[Diagram]](../../diagrams/3/55732261ae62c18ebd4b7484a9c2b4f7.png) | White first to live |
Karl Knechtel: The eye at a is already secured. White needs to make one in the space around b.
![[Diagram]](../../diagrams/22/df0d67eba4062d64dc373b27587b1915.png) | White first to live |
First, White chases Black around. If is played elsewhere, then White will play at to seal off the second eye. Similar reasoning is applied for .
![[Diagram]](../../diagrams/5/825c2ec93246b11367765607442ab48c.png) | White's tesuji |
threatens capture of more than enough eye space, so Black must capture.
![[Diagram]](../../diagrams/35/525d3dbd631ea7b50a9eace6aabd3ff2.png) | White first to live |
threatens to capture again so Black fills in, but it's a connect-and-die - finishes the job since Black can't escape.
![[Diagram]](../../diagrams/30/3440e837447740fe2a1ff8ea91c82a56.png) | Reference diagram |
splice: Small technicality. Karl's comment: " threatens capture of more than enough eye space ...". As far as I can read, anything less will leave White with one eye. To wit:
![[Diagram]](../../diagrams/42/5a12ad84dc4d287a420332dd614f2696.png) | Not enough |
![[Diagram]](../../diagrams/24/e7d93f2d27aa60a6e4d6884fd52c417e.png) | Not enough pt 2 |
So playing until the black stone is hit is not more than enough eye space, it's actually just enough. At least, the way I see it :)
![[Diagram]](../../diagrams/3/569ec87a89619dd615f96d56fed21f3d.png) | Not enough (Correction) |
unkx80: In the diagram entitled "Not enough", is wrong, but is also wrong. lives.
aigo: Following the same line of logic, is another mistake, it should go where is to make an eye instead of capturing the black stone.
unkx80: Yes.
![[Diagram]](../../diagrams/52/b84051beb0cea08cd28e8163fc904d32.png) | Not enough (Correction) |
should be played here. Subsequently, if White a, Black throws in at and the eye becomes a false.
![[Diagram]](../../diagrams/22/615c89ad7e152c2c1d6798b0e08a6a2d.png) | Just enough |
![[Diagram]](../../diagrams/5/c252a3de2d4ef021adbd01cec8447e76.png) | Just enough pt 2 |
This way White has just enough space to make a second eye.
This is a copy of the living page
"Beginner Exercise 19 / Solution" at
Sensei's Library.
2004 the Authors, published under the OpenContent License V1.0.
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