:: Igo Hatsuyôron 120 (2015)

Joachim's Ko-Semeai - Putting the Cart

Before the Horse (2013 - 2015)

7a2 - Black plays from the Left

Without Cutting First

Again, we will take / off the board. The exchange of for does not matter here.

This time, Black plays from the left.

But White secures her eye in the centre with a move at . Now, Black has no other choice but to destroy White's potential eye on the upper edge.

We have the same situation as above, with seven liberties for White (4 * w, 3 * c) against eight liberties for Black (3 * c, 4 * b, k).

White would not have captured the ko with , but occupied another liberty of Black's group, in order to win the semeai unconditionally.

Copyright © 2016 Thomas Redecker.

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