:: Igo Hatsuyôron 120 (2015)

Variations of Our Solution (II)

VAR (C) (B)

: ( 357)
White takes a further liberty of Black's group. She could capture the hanezeki's tail with a move at , instead, entering the "fake" Punishment Semeai ( 359), but which also includes the usage of a White ko-threat in the top left corner, as in this sub-variation here.

:
White fills in her second false eye. Now, we have the same situation as in the sub-variation for , shown hereafter ( 361).

White's group has five liberties left. Black's group has no outside liberties any more, but Black has three ko-threats on the right side (, , and capturing White's two stones inside his eye). White must use one of her own ko-threats, if she wants to win.

If White plays at , or takes the ko at , instead, there will be no effect on the final result. White will still need an own ko-threat.

Copyright © 2016 Thomas Redecker.

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