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Basic Live Shapes
Path: LifeAndDeath · Prev: BasicDeathShapes · Next: Seki
Difficulty: Beginner
Keywords: Life & Death
Here are some basic live shapes. See also: Nakade and shape. Live shapes have to have two eyes.
This is the smallest live group you can create. Now, why is this group alive? Consider the next diagram:
Even though Black is surrounded by White, the group 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.
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 co-dependent units. (White requires a stone at a or b. -- Dale) (But the group is alive, because if Black plays at a then White can play at b and conversely.)
Here's another invincible pair.
This is the smallest unit I can find on the side.
Here are the smallest live shapes in the center. -- FCS, Arno Hollosi
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.
Here's a group of three units. And the list goes on and on... -- FCS Path: LifeAndDeath · Prev: BasicDeathShapes · Next: Seki This is a copy of the living page "Basic Live Shapes" at Sensei's Library. (C) the Authors, published under the OpenContent License V1.0. |