[computer-go] 19x19 Study. Nakade is difficult

[Alain Baeckeroot]

Le mercredi 30 janvier 2008, Don Dailey a écrit :
> I must not understand the problem.     My program has no trouble with
> nakade unless you are talking about some special case position.    My
> program immediately places the stone on the magic square to protect it's
> 2 eyes.    I can't believe mogo doesn't do this, it would be very weak
> if it didn't.
> 


Worth to see, http://senseis.xmp.net/?NakadeExample3
This example comes from "Modern Famous Games" (Gendai no Meikyoku), vol. 6:
 Go Seigen, II p. 59.
In the game, both players, Go Seigen and Fujisawa Kuranosuke misread this
corner. (4 points nakade can become 2 points nakade)


Also this incredible capture 16 stones, but still dead :)
http://senseis.xmp.net/?BiggestKnownEyeSpaceForWhichThereIsANakade

Alain.