[Top][All Lists]

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: [gnugo-devel] about patchs for regress file 13x13b:8

From: kevin yong
Subject: Re: [gnugo-devel] about patchs for regress file 13x13b:8
Date: Fri, 4 Apr 2003 12:01:57 -0500 (EST)

Hi, Evan:
  Regard 13x13:8. In a previous email, you suggested:

One solution might be to devalue ED66 from J to j, and
change ED67 to propose the move at F10, with a
suitable constraint that makes sure the move works.

  I made some changes as you suggested (but without
put any constraint on ED67):

Pattern ED66

?x?         draw back for safety



; xplay_defend(*,a,*) && !xplay_attack(*,a,B)

Pattern ED67

?x?         draw back for safety


and run test, I got the result:

Top moves:
1. F10 16.44
2. F11 16.44
3. K1  2.19
Checking safety of a black move at F10
Move generation likes F10 with value 16.44
genmove() recommends F10 with value 16.44

my appinion is that: it is basically works, but may
need little more detailed tuning to make F10 has more
value than F11. Factualy, the territory gain of F10 is
only 1 point more than F11, without considering F10
can also connect G9 etc, because which are beyond the
scope of these 2 patterns.

I did read patterns.texi file several times, but I
still don’t think I have fully understand how the
whole pattern spec works yet. Eg. Pattern ED67, I
don’t know what constraints we should put on and how
to specify them.

Thank you for all your replies and like to hear more
suggestions from you.


Post your free ad now!

reply via email to

[Prev in Thread] Current Thread [Next in Thread]