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  2007-12-03

Problem diagram.
Black's response to White's marked play?

Ever notice how game commentaries don't mention a move that you think is clearly better the pro's move? If so, welcome to my world!

Source:
Go World #111, Summer 2007
Cho U (black) vs. Lee Sedol (white)

Analysis: Myron Souris

Solution follows    (or click here to download SGF)






























The game line.
Cho U played Black 1, but the game commentary didn't say anything about White's bottom group only having one eye. How could Black have overlooked such a simple kill?! With 4, White captures a stone to make life. How could Black have just sat by and watched? Maybe pros are overrated and kyu players are underrated?


Killing move?
Doesn't Black 1 leave White with only 1 eye?! After Black connects with 3, Black's outside stones are safe and White is surely dead, right? White could cut with 4, but after 15, White runs out of moves. White's lower side group dies.


White lives!
(14 @ 17)
But White's other cut at 4 is more interesting! White makes 2 more forcing moves, and then goes for 2 eyes with 10. If Black resists with 11, White catches Black in a shortage of liberties through 18. Aaaaaack! So White DOES live! Both pros saw all of this in an instant, along with the correct line of play from the game line. I hate pros.


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