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Big eyes can be small in the corner
Path: GiveMeLiberties · Prev: BigEyeLiberties · Next: NakadeLiberties Path: EyesCollection · Prev: BigEyeLiberties · Next: EyesThatLoseLiberties
Keywords: Life & Death, Tactics
One of the special properties of the corner is that big eyes become smaller, meaning the extra liberties they normally have become void or reduced due to the eye being in the corner.
We have seen in big eye liberties that a squared four eye space creates five eye liberties. Let's see what happens in the corner.
Even if White goes first, White falls two moves short: Black can make an eye inside White's big eyespace due to the special properties of the corner, giving atari. This way, instead of five liberties, White has only three.
Preventing the eye with
Under normal circumstances, White has seven liberties against Black's five. However ...
Black can exchange
If the bulky five is positioned as in this diagram, it becomes a big eye again because now there is no way Black can make an eye in it. White wins this capturing race seven-to-five.
Here too, we have to imagine the Again we must not mistakenly assume White has a six-point big eye with eleven liberties. Authors: Dieter This page is part of the Eyes Collection. Path: GiveMeLiberties · Prev: BigEyeLiberties · Next: NakadeLiberties Path: EyesCollection · Prev: BigEyeLiberties · Next: EyesThatLoseLiberties This is a copy of the living page "Big eyes can be small in the corner" at Sensei's Library. ![]() |