Paths: <= Life and Death =>   ·   <= Study =>
First: reduce space  

Since the group is already sealed in, we first think about reducing the eyespace. If W2, then B3 reduces White to a door group which is dead.

Next: cut  

White's obvious counter measure is to expand her eyespace by blocking at W2. Next, B3 cuts her stones apart. B5 maintains the cut and Black's stones will suffer from shortage of liberties on either side.

Final solution  

One possible continutation: Black has insufficient outside liberties to capture the cutting stones.

Borrowed from Dieter Verhofstadt/Why Fundamentals Matter, where you can find the failed attempts.

Paths: <= Life and Death =>   ·   <= Study =>
HowToApproachALifeAndDeathProblem/ExampleSolution last edited by Dieter on December 2, 2019 - 22:19
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