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2009-07-20

Problem diagram.
Black plays.

Source:
Qi Jing Zhong Miao #318 , an ancient collection of mostly kyu level life and death problems.

Analysis:
   Myron Souris

Solution follows    (or click here to download SGF)






























Correct.
Black 1 captures either the 2 stones on the left or the 6 stones on the right. The best that White has is 2. Through Black 5 is the best sequence for both sides. Black captures the 6 stones on the right, but in gote.

See the SGF for these and other variations.


Inferior for White.
White can vary with 2 to save the stones on the right, but Black captures the 2 stones on the left with 5, which overall is a little bigger for Black! Through Black 7, both of White's group have to live in gote, while Black seals off the left side in sente.


Failure.
Black 1 is normally a good shape move, but fails here. White 2 takes the key point in this position. Through 6, White saves all his stones.


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