Joachim's Ko-Semeai - Putting the Cart
Before the Horse (2013 - 2015)
E4d - White's Centre Group has Three Liberties
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: One challenge, however, remains for Black: Without White's co-operation, he can not reach the situation presented here. |
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: If we assume the exchange of / to have been a White ko-threat, the number of White's ko-threats in the top left corner has been reduced from five to three effectively (, , ), but which is still enough to win the game. |
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: On the left side of the board, there is no move available, with which White could pre-empt all Black options for further ko-threats. |
: Black has valid ko-threats in the nakade, only if White's -group has less than six liberties, or White's centre group has less than four liberties. |
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