Hanging connection
| Table of contents | Table of diagrams Connection Solid connection Blocking along the side Double hanging connection Avoid two peeps A raw peep |
The hanging connection is an application of the tiger's mouth shape and serves at least two distinct purposes: an indirect way of defending a cutting point, and a way of blocking inroads to a certain part of the board.
Defending a Cutting Point
A solid connection in this case creates an empty triangle and is less efficient. White can more easily play a later.
Blocking inroads
If White advances with
, then the hanging connection of
backs up
to block off the upper side. As a minor setback, this allows White to play a forcing move, with the peep at a. Also, White will likely get to make the sente endgame hane one point above
.
Bill: In fact,
may be better at a.
Double hanging connection
In this case
covers two cutting points. See trumpet connection. However, this allows for two forcing moves, at a and b:
Because a double hanging connection allows two peeps, it should often be avoided. Here
, or a, might be better.
Incidentally this case
may be criticized as a raw peep: a peep at a cutting point that still might be useful as a cut (depending on the ladder).
Bill: Also,
is hardly forced.
Endgame impact
It should be noted that the hanging connection changes the endgame hane-connect
from sente (if
at a instead, then Black must play b) in gote.
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