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Big Question Mark Problem 6
White to play. I am confused whether there's a difference with the marked white stone on the second line, or not there.
I played this in the real game. Both lived (seki).
Black's dead, I guess.
--Leonard Huang (17k)
This seems much simpler! Alain (4D)
But what if Black plays like this?? Leonard. There is no way Black could make two eyes in this shape, Black doesn't have enough space (only four stones on the second line). You need at least five stones on the second line to make two eyes. The only thing Black has is a ko threat.
At least five stones on the second line to make two eyes!
The marked stone threatens to make a second eye with the throw-in tesuji of 1. If White captures, Black can play 3 and White can't connect because of a shortage of liberties (damezumari). This is because of the special properties of the corner and a good illustration of the go proverb "Strange things happen at the 1-2 point.. So, when Black plays the marked stone, White has to play at 1 or a if she wants to kill the group. -- Alain Wettach 4D (Europe) This is a copy of the living page "Big Question Mark Problem 6" at Sensei's Library. (C) the Authors, published under the OpenContent License V1.0. |