Sub-page of TsumegoFromGames164
a ko  

W1 is the key. Black can only respond at B2 then after W3 black needs to play B4 to prevent a connnect and die allowing White to start a ko with W5. Black can back down with B4 at a but after White at b Black will lose a few stones.

-- This looks slightly better than my attempt because W has 3? internal ko threats to use here: the push at c, then the atari at b, and atari above W2.

fractic: Actually black can use c as a ko-threat but after white answers at b, White can take a stone as a threat. So I guess White should play c first after all.


Starting with this W1 fails as black can play at B2 and can then answer W3 with B4.

Game continuation  

fractic: In the game I missed Black's correct answer to W1, fortunatly so did my opponnent. A nice connect and die appears after W5.

TsumegoFromGames164/Solution last edited by fractic on May 25, 2011 - 23:23
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