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Basic Life Shapes
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  Difficulty: Beginner   Keywords: Life & Death

Here are some basic life shapes. See also: Nakade

Life shapes have to have two eyes.

[Diagram]
Diag.: Small life in the corner

This is the smallest life group you can create. Now, why is this group alive? Consider the next diagram:


[Diagram]
Diag.: Why it is a alive ...

Even though black is surrounded by white, it is completely alive. If white plays 'a' or 'b', that stone will die at the end of the turn, and the black group will still be alive.


[Diagram]
Diag.: Other small corner shapes ...

These two groups are small as well (just 5 and 6 stones) but this is interesting because it is not one unit (one string of connected stones) -- it is two codependent units.

(White requires a stone at a or b. -- Dale)


[Diagram]
Diag.: 6 more codependant stones

Here's another invincible pair.


[Diagram]
Diag.: A small unit along a side...

This is the smallest unit I can find along the side.


[Diagram]
Diag.: Small units in the center

Here are the smallest alive shapes in the center.

--FCS, ArnoHollosi



[Diagram]
Diag.: An unlikely quartet

I don't think you'd ever see this shape in a game, but it's interesting in that there are four co-dependent groups.


[Diagram]
Diag.: Three odd fellows

Here's a group of three units.

And the list goes on and on...

--FCS



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