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L+1 group
Path: LifeAndDeath · Prev: LGroup · Next: L2Group
Keywords: Life & Death
An L+1 group is an L group with a leg. The leg can be at the short side or the long side of the L shape. In both cases the group lives or dies according to sente. First L+1 Group
The first L+1 group lives or dies according to sente.
Black can live by playing on the 1-2 point as shown.
White can kill by playing hane at 1. This reduces the shape to the standard L group, which we already know is dead. Second L+1 Group
If the leg is on the other side, again the position depends on sente.
Now the 2-2 point is the vital point for Black.
Again, reducing Black to a basic L group by a hane, kills the corner. Second L+1 Group, weak leg
The second L+1 group with a weak leg is also unsettled. White can kill at a or Black can live by playing at a. Path: LifeAndDeath · Prev: LGroup · Next: L2Group This is a copy of the living page "L+1 group" at Sensei's Library. ![]() |