Since I've started thinking about adding 3x3 patterns in my own code, has anything ever evolved from this? For example, I'd be interested in contrasting the frequency of playing a pattern with the frequency that the opportunity to play the pattern pops up.
On 5/26/07, Peter Drake <[EMAIL PROTECTED]> wrote: > > I've thrown together a rudimentary pattern extractor and was looking at > 3x3 patterns taken from a collection of 9x9 games provided by Nici > Schraudolph. Each game was played throughin each of the four rotations > and two reflections. Colors were inverted every other move, so all of these > patterns have black to play in the center. > > Looking at the data below, it appears that: > > a) It might be better to somehow take into account the ratio between how > often the pattern appeared and how often the corresponding move was played. > b) Endgame moves appear often, because they get played sooner or later. > c) Tesuji don't appear as often as one would hope. Connecting against a > peep, making a bamboo joint, and the diagonal cut are not among the top > patterns. > > Let the thread begin! > > The actual information: > > 134008 occurrences of > ... > .?. > ... > > (Fair enough, you need a lot of these.) > > 9794 occurrences of > ... > .?. > Bw. > > (And similarly for the other 7 transformations of this. Hane.) > > 7444 occurrences of > ... > .?. > .w. > > (3 transformations. Contact play or attachment.) > > 7170 occurrences of > ... > .?. > w.. > > (3 transformations. Shoulder hit.) > > 5512 occurrences of > ### > .?. > Bw. > > (7 transformations. Hane underneath -- is there another term?) > > 4840 occurrences of > ... > w?. > Bw. > > (3 transformations. Crosscut.) > > 4489 occurrences of > ... > w?. > wB. > > (7 transformations. Is there a name for this?) > > 4054 occurrences of > ... > B?. > wB. > > (3 transformations. Preventing a crosscut? Closed triangle?) > > 3922 occurrences of > ... > .?. > wB. > > (7 transformations. Anti-hane?) > > 3806 occurrences of > ... > .?. > B.. > > (3 transformations. Diagonal connection.) > > 3656 occurrences of > ### > .?. > BwB > > (3 transformations. Connection underneath.) > > 3597 occurrences of > ... > w?. > .B. > > (7 transformations. Name?) > > 3197 occurrences of > ... > w?. > BB. > > (7 transformations. Another full triangle.) > > 3196 occurrences of > ..# > .?# > Bw# > > (7 transformations. Blocking on the first line -- VERY endgame.) > > 2986 occurrences of > ### > B?. > wB. > > (7. Connecting on the first line?) > > 2892 occurrences of > ... > .?. > BwB > > (3. Potentially a capture.) > > 2456 occurrences of > ... > .?. > wBw > > (3. The opposite of the previous pattern.) > > 2300 occurrences of > ### > .?. > Bww > > (7. Name?) > > > Peter Drake > http://www.lclark.edu/~drake/ <http://www.lclark.edu/%7Edrake/> > > > > > _______________________________________________ > computer-go mailing list > computer-go@computer-go.org > http://www.computer-go.org/mailman/listinfo/computer-go/ >
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