Joachim's Ko-Semeai - Putting the Cart
Before the Horse (2013 - 2015)
0d - An Additional Outside Liberty for White
( 960) (Referenced by 1002) If White got an additional outside liberty, there would be no ko. Black's -stone will be taken off the board for analysis. !!! Please be aware that Black must have made a mistake earlier in the sequence to fulfil this assumption. Therefore (as an exception from the rule), we will not adjust the number of Black stones on the board here. !!! |
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White now has six liberties (3 * w, 3 * c), against seven liberties for Black's group (3 * c, 3 * b, k). However, this means that White has captured the ko with her move at a bit "too early". |
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: Black is forced to connect the hanezeki's tail. |
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: Black's connected group on the lower edge has five liberties only (4 * t, a), one of which (a) is an approach-move liberty. White's centre group has also five liberties left (2 * w, 3 * c). It is White's turn, so: White would win the semeai unconditionally, if Black ever lost a move unnecessarily. |
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