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GreKo 2018.01

Posted: Wed Jan 31, 2018 3:47 pm
by WinPooh
http://greko.su/greko-2018.01.zip

GreKo 2018.01
-------------
31-Jan-2018

(fix) * Hashtable fix: do not record score returned from unfinished iteration.
(chg) * Evaluation terms for passed pawns modified.
(chg) * Time management formula modified. Better for very short time controls.
(old) * Variable strength is back.

This version supports reduction of strength by adjustement of search speed.
You can use UCI parameter "Strength" or run GreKo with a command line parameter:

GreKo.exe -s <level>

where level is an integer number from 0 to 100:

Level Knps Rating
----------------------------
0 0.1 1600
20 1 1800
40 10 2000
60 100 2200
80 1000 2400
100 10000 2600

You can use any intermediate value for level, speed of search will be interpolated.

Re: GreKo 2018.01

Posted: Wed Jan 31, 2018 4:01 pm
by CMCanavessi
Thanx Vlad! Any estimate of how stronger it is compared to 2017?

Re: GreKo 2018.01

Posted: Wed Jan 31, 2018 4:21 pm
by WinPooh
CMCanavessi wrote:Thanx Vlad! Any estimate of how stronger it is compared to 2017?
I hope at least 10-20 points. But I did not test it on long time controls.

Re: GreKo 2018.01

Posted: Wed Jan 31, 2018 8:48 pm
by WinPooh
CMCanavessi wrote:Thanx Vlad! Any estimate of how stronger it is compared to 2017?
It scores 70%(+120 Elo points) against GreKo 2017 at ultrafast time control (1 sec + 0.1 sec. increment). But I am not sure it's not because of a new time management formula.

Re: GreKo 2018.01

Posted: Wed Jan 31, 2018 10:04 pm
by Graham Banks
WinPooh wrote:http://greko.su/greko-2018.01.zip

GreKo 2018.01...
Looking forward to testing his version. Sounds like it could be the strongest GreKo yet. :)

Re: GreKo 2018.01

Posted: Thu Feb 01, 2018 5:35 pm
by supersharp77
WinPooh wrote:
CMCanavessi wrote:Thanx Vlad! Any estimate of how stronger it is compared to 2017?
I hope at least 10-20 points. But I did not test it on long time controls.

Thank You for the Release..We Love Greko!! :D :wink:

Re: GreKo 2018.01

Posted: Fri Feb 02, 2018 4:15 pm
by Guenther
SzG wrote:Unfortunately Fritz 15 does not recognize the engine, name field remains empty after loading it. Even if I fill it manually it won't be installed.

GreKo 2017 behaved similarly but there at least manual filling of the name field helped.
IMHO those CB GUIs are obsolete since long, at least for serious engine testing.

Re: GreKo 2018.01

Posted: Fri Feb 02, 2018 7:14 pm
by WinPooh
SzG wrote:Unfortunately Fritz 15 does not recognize the engine, name field remains empty after loading it. Even if I fill it manually it won't be installed.

GreKo 2017 behaved similarly but there at least manual filling of the name field helped.
Sorry, never test it in Fritz GUI. Even does not have it on my machine.
Arena, Winboard, cutechess-cli recognize GreKo without any problem - enough for me.

Re: GreKo 2018.01

Posted: Fri Feb 02, 2018 7:16 pm
by WinPooh
SzG wrote:Unfortunately Fritz 15 does not recognize the engine, name field remains empty after loading it. Even if I fill it manually it won't be installed.

GreKo 2017 behaved similarly but there at least manual filling of the name field helped.
Can you specify "-log" command line parameter for engine in Fritz GUI? GreKo will create GreKo.log file with all incoming commands, maybe this can help...

Re: GreKo 2018.01

Posted: Sat Feb 03, 2018 10:31 am
by Werner
Hi,
perhaps it helps if you Code like in 2015

6964206E616D652025730A00
id name %s
best wishes