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Trapezium shape
Keywords: Shape
The black stones have the shape of a trapezium.
If the marked stone were at a, the trapezium would become a bamboo joint. Usually, one sees this shape in amateur games as an attempt to connect and move faster than the bamboo joint. However, one rarely sees it in pro games and that because it is not such a good shape. Here are the weaknesses.
Firstly, the diagonal in this shape can be compromised by
Secondly, in this case the trapezium can be cut.Try to spot the weakness and verify at cutting the trapezium. This is a copy of the living page "Trapezium shape" at Sensei's Library. ![]() |