Gu Li's Brilliant Moves
Gu Li Black, Zhou Shouxun? White, Chinese Team Competition 12/4/2003
This is the time for Gu Li's tesuji.
Ed? Black 'a' looks like a good move to me. If white 'b' black pushes through at 'c' and captures 2 stones instead of the 1 captured by pushing immediately. If white 'd' black plays 'b' and has made it up to the 4th line. If white 'e' black 'd' appears to catch the cutting stones.
Dieter: Brilliant indeed!
captures a stone, but this does not compensate for the weakening of his big group.
This crawling is not desirable.
The expected shape destroying move would be . After
captures two stones, Black can solidify his influence with a or b, but the position can still be considered as thin.
Solution
Black captures the cutting stones
Jasonred : Hold on... so, the extra stone at 7 and extra stone captured IS worth the weakening of the main group? I assumed the 8,9 sequence, is that correct?
crux: It appears that professionals think that way. There's a similar observation somewhere in Invincible, where a move that causes Shusaku to capture three stones instead of two is called the losing move.