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2009-10-05

Problem diagram.
White plays.

Source:
Qi Jing Zhong Miao #337 , an ancient collection of mostly kyu level life and death problems.

Analysis:
   Myron Souris

Solution follows    (or click here to download SGF)






























Correct.
White 1 is the only move. Black can try to expand his eye space with 2, but White can calmly squeeze from the outside with 3. After 5, White wins the liberty race.

See the SGF for more variations than shown in these diagrams.


Black variation.
Trying to create eye space with Black 4 doesn't work either. Through 11, White connects underneath to capture the Black stones.


Black variation.
Black 2 is another attempt to create eye space, but White 3 is the correct play. Now White can easily atari the Black group from the left and top sides though 9.


White failure.
White 1 is bad timing. With 2, Black now has time to capture the White stone for an internal eye. Though 13, White's attempt to win the semeai are in vain. Black 14 puts White into atari.


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