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Posted: **Sun Nov 08, 2015 9:38 am**

Between v0.30 and v0.31 there were a few bugfixes. Then, I wanted to start
working on the eval, but after following a discussion between H.G.Muller
and Shawn Chidester in the technical forum, I decided to implement futility pruning first.
And this gave a nice elo boost.

To get an idea of the new strength, here are the results of 1000 games:

Openingbook: Adam-Hair-10moves-199041.pgn
Ponder On
TimeControl: 40/60
gui: winboard

Galjoen - Jan Willem (1956 +/-11): 162 - 89 - 49 (W-L-D)
Galjoen - Floyd 0.6 (2072 +/- 25): 117 - 129 - 54
Galjoen - Parrot (2075 +/- 15): 109 - 163 - 28
Galjoen - Monarch (2055 +/- 12): 33 - 45 - 22

Using ordo plus the ratings and errors from ccrl 40/4:

Code: Select all

   # PLAYER             &#58; RATING    POINTS  PLAYED    (%)
   1 Parrot             &#58; 2083.9     177.0     300   59.0%
   2 Monarch v1.7       &#58; 2058.0      56.0     100   56.0%
   3 Floyd 0.6          &#58; 2049.8     156.0     300   52.0%
   4 Galjoen_v0.31      &#58; 2028.5     495.0    1000   49.5%
   5 JanWillem          &#58; 1953.0     116.0     300   38.7%

Posted: **Sun Nov 08, 2015 9:03 pm**

A 32-bit version (WinXP) ?

A1.-Apologizing if is too much !

A2.-THANK YOU if YES !

Posted: **Mon Nov 09, 2015 7:19 am**

I'll give it a try.
I let you know.

Posted: **Sat Nov 14, 2015 9:48 am**

Hi Ruxy,
I don't think that there will be a 32bit.exe soon. I can compile with a 32bit crosscompiler but the exe doesn't work at all on my computer.

Posted: **Sat Nov 14, 2015 6:32 pm**

I have compiled a 32 bit Windows version.
Was built with Mingw32 (posix threads version) & compiler optimization switch 'O2' with profiling.
Couldn't go any higher than 'O2' without crashing. Only working properly in Winboard protocol mode.
Works with UCI in console mode, but crashes when run through Arena chess gui.

http://tinyurl.com/obxh7cz

Jim.

Posted: **Sat Nov 14, 2015 7:43 pm**

Jim Ablett wrote:I have compiled a 32 bit Windows version.
Was built with Mingw32 (posix threads version) & compiler optimization switch 'O2' with profiling.
Couldn't go any higher than 'O2' without crashing. Only working properly in Winboard protocol mode.
Works with UCI in console mode, but crashes when run through Arena chess gui.

http://tinyurl.com/obxh7cz

Jim.

What a surprise, Maestro Jim ! Works perfectly (like Wb engine) in my old WinXP ! A Maestro rests forever a Maestro !

THANK YOU A LOT !

Posted: **Sat Nov 14, 2015 7:54 pm**

Werner Taelemans wrote:Hi Ruxy,
I don't think that there will be a 32bit.exe soon. I can compile with a 32bit crosscompiler but the exe doesn't work at all on my computer.

Tank you a lot for your condescension !

Regards,

Posted: **Sat Nov 14, 2015 8:45 pm**

Werner Taelemans wrote:Between v0.30 and v0.31 there were a few bugfixes. Then, I wanted to start
working on the eval, but after following a discussion between H.G.Muller
and Shawn Chidester in the technical forum, I decided to implement futility pruning first.
And this gave a nice elo boost.

How much elo gain +/-?

Posted: **Sun Nov 15, 2015 6:44 pm**

Good question.
I can't compare with previous versions since there were bugfixes between v0.30 en v0.31,
but I made a new version without futility pruning and let v0.31 play 100 games against this new version. The version without FP actually won:
26W - 23L - 51D

I was clearly too fast when I attributed the elo boost to futility pruning. And my implementation of FP needs some extra work.

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Galjoen_v0.31

Galjoen_v0.31

Re: Galjoen_v0.31 w32

Re: Galjoen_v0.31 w32

Re: Galjoen_v0.31 w32

Re: Galjoen_v0.31

Re: Galjoen_v0.31

Re: Galjoen_v0.31 w32

Re: Galjoen_v0.31

Re: Galjoen_v0.31