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Solution To OngoingGame2 - Move 174
Difficulty: Advanced
Keywords: Problem
After W1 black tries to capture her stone with B2. White answers calmy at 3. What shall B do next?
If black plays at 1, white cuts through his position with 2. B has to answer at 3 and 5, otherwise he loses the 6 black stones on the left. So, applying the proverb "Your opponents good move is your good move" black might try to protect against white playing at 2.
So let's assume that black plays B1 here. Next white plays 2. Can you read out the ladder?
If black uses 3 to capture the white stone, he loses very quickly. After 7 the black stones are lost.
If black uses 3 to run, the ladder becomes longer.
After white 4 black's group is in damezumari and black cannot connect (white would capture at 'a'). So, black cannot capture the original white stone, but instead has to save his own stones.
Note that white still has some good aji around this area.
Lo! Behold AvatarDJFlux!! Praise to the Finder Of The Much Difficult Black Answer At 175!!! This is a copy of the living page "Solution To OngoingGame2 - Move 174" at Sensei's Library. (C) the Authors, published under the OpenContent License V1.0. |