Enclosure Josekis.pdf

Dia. 3 (the crosscut). If Black 4, the crosscut at 5 is the followup
to 3. When Black plays 6, White gives atari at 7. Black must
now decide whether to connect at `a' or to capture at `b'.
Dia. 4 (playing lightly). If Black connects at 1, White forces
with 2, then jumps lightly to 4. The latter is the key move: when
reducing a moyo, White must always aim at playing lightly like
this to get sabaki (i.e. a light, flexible shape). There are two cutting
points in White's shape, at `a' and `b', but there is no need to worry.
Dia. 5 (thickness). If Black cuts at 1, White does not connect at
3, but instead gives a counter-atari at 2, letting Black capture at 3.
White turns at 4, then extends to 6 if Black captures another stone
with 5. This makes White thick in the center. Playing White 2 at 3
would be bad style and would only make White heavy.
Dia. 6 (heavy). White 1 is heavy: White has forgotten the importance
of playing lightly, as with 4 in Dia. 4. White's shape immediately
crumbles when Black plays at the vital point of 2. Even
just escaping is going to be no easy matter for White now.
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