Authors:
Main line: Hashimoto Utaro 9p
Variations: unkx80 1d*, Dieter Verhofstadt 1k
Black starts by pushing out at . Escaping to the center is considered success, so White blocks at
.
The whole thing is a set-up to get the hane of in place, before playing the connection of
. After
, the vital point, Black has two eyes.
The awkward move in this sequence is . Suppose Black captures at
instead. After
, he needs three moves to remove it, and White can create shortage of liberties at
.
If Black omits the push and hane ( and
in the main line), and plays at
, White plays hane at
.
keeps Black to one eye. Even if Black captures the white stones
and
, he will only get a False Eye.
Starting with the hane at in variation 3 works as well, but
can defend at a instead of d. Compare this with the sequence Black a, White b,
, and Black loses the possibility of cutting at c.
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