Joachim's Ko-Semeai - Putting the Cart
Before the Horse (2013 - 2015)
4a1 - White's Second, but Unneeded, Kikashi
to Gain Additional Ko-Threats (I)
(Referenced by As a kind of desperate measure, White might try creating additional ko-threats in the top left corner. The exchange of |
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We also inserted the first moves of the Nakade Sequence ( |
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You might want to find out for yourself that White would have generated sufficient ko-threats to win in the case that Black's group had seven liberties, i.e. one liberty less than here. To simplify, and shorten, the presentation, we will assume that Black played a protective move in the top left corner, with The situation is as already seen before. White's group has five effective liberties (w, 4 * c), Black's group has seven liberties (4 * c, 2 * b, k), and Black has either the ko-threat of |
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