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Phalanx XXIII

Posted: Mon Oct 20, 2014 11:01 pm
by dusando
After long fourteen years and nine months, a new version of Phalanx is available from https://sourceforge.net/projects/phalan ... n%20XXIII/

Changes are:

- Xboard protocol version 2 compatibility, including the periodic updates feature
- New -n commandline option to limit nodes per second
- New -z commandline option to randomize root moves within a given centipawns margin, e.g. phalanx -z 40 adds pseudorandom values between -20 and 20.
- Easy levels now don't play instantly, but use time
- Bugfixes

This version retains the style, strengths and weaknesses of the original XXII released 2000-01-16, it should be a bit stronger with the bugfixes, but there are no modern search techniques introduced, yet. This was like working on a vintage car, you never start with adding a turbo, first of all it needs to be fixed and polished :)

Enjoy

Re: Phalanx XXIII

Posted: Tue Oct 21, 2014 12:33 am
by Graham Banks
dusando wrote:After long fourteen years and nine months, a new version of Phalanx is available from https://sourceforge.net/projects/phalan ... n%20XXIII/
Thanks Dusan. Very much appreciated. 8-)

Re: Phalanx XXIII

Posted: Tue Oct 21, 2014 1:24 am
by carldaman
dusando wrote:After long fourteen years and nine months, a new version of Phalanx is available from https://sourceforge.net/projects/phalan ... n%20XXIII/

Changes are:

- Xboard protocol version 2 compatibility, including the periodic updates feature
- New -n commandline option to limit nodes per second
- New -z commandline option to randomize root moves within a given centipawns margin, e.g. phalanx -z 40 adds pseudorandom values between -20 and 20.
- Easy levels now don't play instantly, but use time
- Bugfixes

This version retains the style, strengths and weaknesses of the original XXII released 2000-01-16, it should be a bit stronger with the bugfixes, but there are no modern search techniques introduced, yet. This was like working on a vintage car, you never start with adding a turbo, first of all it needs to be fixed and polished :)

Enjoy
Thanks a lot, Dusan! :D

Regards,
CL

Re: Phalanx XXIII

Posted: Tue Oct 21, 2014 6:11 am
by Charly
Hi,

This is the kind of info that make my day !

I will test the new Phalanx in my "League Botvinnik" in 4 days.


Many thanks for your GREAT engine !

Arnaud Loheac


ACCC (Arnaud's Computer Chess Corner)
http://aloheac.perso.neuf.fr/

Re: Phalanx XXIII

Posted: Tue Oct 21, 2014 8:37 am
by Thomas Lagershausen
Thx a lot Dusan.

And in 2015 Phalanx 24 will have the turbo. :D

Re: Phalanx XXIII

Posted: Tue Oct 21, 2014 12:15 pm
by skoony
i a trying to install phalanx in the new WB4.8
using EngMan.exe.
the program says the program is saved
but it doesn't get posted to winboard.ini .
i'm stumped.
regards
mike

Re: Phalanx XXIII

Posted: Tue Oct 21, 2014 12:29 pm
by hgm
dusando wrote:- Xboard protocol version 2 compatibility, including the periodic updates feature
- New -n commandline option to limit nodes per second
- New -z commandline option to randomize root moves within a given centipawns margin, e.g. phalanx -z 40 adds pseudorandom values between -20 and 20.
Why use command-line options for features for which XBoard protocol has standard commands (nps and random)? That doesn't seem very user-friendly. :cry:

Re: Phalanx XXIII

Posted: Tue Oct 21, 2014 12:31 pm
by hgm
skoony wrote:i a trying to install phalanx in the new WB4.8
using EngMan.exe.
the program says the program is saved
but it doesn't get posted to winboard.ini .
i'm stumped.
regards
mike
EngMan.exe? What's that?

I guess it must be not as WinBoard-compatible as you think. You should not have such problems if you use WinBoard to install the engine...

Re: Phalanx XXIII

Posted: Tue Oct 21, 2014 1:17 pm
by Roger Brown
skoony wrote:i a trying to install phalanx in the new WB4.8
using EngMan.exe.
the program says the program is saved
but it doesn't get posted to winboard.ini .
i'm stumped.
regards
mike
Hello Mike,

Please browse to the engine to install it.

Engine > Load First Engine

EngMan is no longer required.

Later.

Re: Phalanx XXIII

Posted: Tue Oct 21, 2014 1:22 pm
by hgm
Well, so claiming that it has "XBoard protocol v2 compatibility" seems an over-statement. It seems most of XBoard protocol would not work, (i.e. is ignored), and you have to use command-line options in stead.