LocalKoThreat/solution

Sub-page of LocalKoThreat
[Diagram]

tobi W3

tderz: I think W3 is good (even better).
The normal White a threatens the same and also involves W3.
I wonder whether one could say that one is better than the other.


[Diagram]

internal ko threats

tderz: [1] B6, W7 and B10 are miai - if B6 at W7, then W10.
White wins the semeai by 2 moves AND the ko at x is still good aji for white (bad for black).
In the game Black got two moves in the upper left corner instead.
B4-W7 is a bad exchange - it loses one liberty.

[Diagram]

internal ko threats

tderz: White answers with W5 to keep the nice ko aji in the corner. White wins by 2.


[Diagram]

stretch + atari

tderz: [2] a (W7) and b (B6) are miai.
It's 4 to 4 liberties (kmnl & pqrst, the exchange x-y is forced and does not count) with white to move.

White wins here (only) by one liberty.

Answer: Black did here not make the bad B4-W7 exchange in [1] above! (that cost him the 1 liberty!)


This is a copy of the living page "LocalKoThreat/solution" at Sensei's Library.
(OC) 2007 the Authors, published under the OpenContent License V1.0.
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