Beginner Exercise 269 / Solution

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[Diagram]

Solution

W1 is the solution. If B2 connects, then W3 connects the whole group back. (If B2 at a, then White plays W3 as well, or B2 or b.)


[Diagram]

Failure 1

Black wins the capturing race, three liberties to two. If White resists with W3 at a, then B4 at b. After this, any W5 can be met with B6 capturing at c, and if W5 takes c, then B6 at d puts the white group in atari.


[Diagram]

Failure 2

W1 here is a better defense, but Black can get a ko.



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