Killer problem 4

  
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Killer problem 4


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Ger Hanssen    (2013-07-13 12:03:42)
Killer problem 4

Black to connect the 4 stones. GoPosition (see diagram)
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   a b c d e f g h j k l m n o p q r s t




Thibault de Vassal    (2013-07-30 09:53:10)
Killer problem 4

I would say Bd5 then Bb5 at a first sight...


Ger Hanssen    (2013-07-30 16:05:08)
Killer problem 4

Bd5, We5, Bb5 and white can get a ko: Wb6, B6a, Wc5.
It can be done without a ko.


Thibault de Vassal    (2013-07-30 22:58:05)
Killer problem 4

Damn... it was too easy :/