Igo Hatsuyo-ron Problem 120 / Solution

As you can see on the [ext] "website of the German Go Federation" Dosetsu's masterpiece is unsolved so far.


This is a copy of the living page "Igo Hatsuyo-ron Problem 120 / Solution" at Sensei's Library.
(OC) 2009 the Authors, published under the OpenContent License V1.0.
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