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Cross-cut then extend
Keywords: MiddleGame, Proverb
The proverb Crosscut ? Then extend ( or The first to extend from a crosscut has the advantage) is somewhat misleading. There has been a lot of criticism that can be read at the CrosscutThenExtendTechnicalDiscussion page. A way to interpret the proverb is to reduce it to a not so common situation:
Some diagrams to explain. Let's quantify the result with the number of liberties.
An isolated cross-cut. Black to play.
It is tempting to play atari. Then connecting at
After the more defensive-looking extension it is White's turn. White has two liberties for both of her stones and Black has three liberties on average. Clearly this is an improvement to the atari-connect diagram. Authors
Nobody seemed to object to my draft, so I replaced the old content of this proverb with the draft and moved the old content to a discussion page. --Dieter This is a copy of the living page "Cross-cut then extend" at Sensei's Library. ![]() |