Joachim's Ko-Semeai - Putting the Cart
Before the Horse (2013 - 2015)
8a - Shared Ko in the Centre
(with Smaller Eye)
|
( To construct a shared ko in the centre, we have to take the |
|
|
|
Here, Black has occupied an outside liberty, with |
|
|
|
|
|
|
|
This is one ko-threat less than with the smaller eye alone. The additional shared ko in the centre makes up for one Black ko-threat. |

986
312
/
stones off the board. This implies that we first assume here that Michael Redmond's kikashi in the bamboo joint has not been played.
:
to
establishes the desired shape in the centre -
and
serve the purpose to give the previous moves a more realistic look only. But now, Black is far below the Punishment Semeai Liberty Level, so we have to shift Black's 
, instead of a shared one. White's group has five liberties (w, 3 * c, j), Black's group has seven liberties (3 * c, j, 2 * b, k).
:

:
:

:
