New engine releases 2019

[xr_a_y]

Minic 0.39 https://github.com/tryingsomestuff/Minic/releases (bug fix, please do not use 0.38)

[jorose]

Winter 0.5 has been released.

I currently do not have access to a Windows computer, so the binaries are cross compiled from Linux and I am unable to test them on Windows at all.

I switched to Lazy Ignorance SMP as I previously described on the technical section of this forum. On 4 cores this resulted in a minor gain (+10+-7), which tended towards unmeasurable on 14 cores.

Singular Extensions and Counter Move History proved to be very successful ideas in the program. The latter I have not yet seriously tuned. On the other hand neither regular history heuristic nor SFs capture history have proved useful, at least untuned. I have not yet tried continuation histories.

Self play regression at bullet TC currently running:
Winter 0.5 vs Winter 0.4a: 1584 - 605 - 2571 [0.603] 4760
Elo difference: 72.49 +/- 6.65

I expect lower gains than this at longer TC but higher gains on more cores. I think +50 is a realistic conservative estimate for the single core CCRL 40/40 true Elo gain.

The timing of this release is partially due to the upcoming S15 of TCEC which this version (specifically the "new" windows compile) will be submitted to, unless there is something wrong with the binary.

https://github.com/rosenthj/Winter/releases

[Guenther]

Winter 0.5 has been released.

I currently do not have access to a Windows computer, so the binaries are cross compiled from Linux and I am unable to test them on Windows at all.

...

https://github.com/rosenthj/Winter/releases

Thanks for the new release, Jonathan.
Ancient and Older binaries work here. Speed difference between both may be 3% - only a quick test from cmd with go depth 20 from start position.

[MikeB]

McCain-X2 got a refresh

https://github.com/MichaelB7/Stockfish/commits/McCain

One source - 4 builds possible
current dev Stockfish
current dev-Stockfish with some matefinder code
current dev-McCain x2
current dev-MCCain X2 with some matefinder code

no exe's will be provide on these intermediate updates
control the build you want by commenting in or out the two red lines below

### ==========================================================================
### Section 1. General Configuration
### ==========================================================================

### Executable name
### McCain bench nodes 3858297
### McCain Matefinder bench nodes 4168970
### stockfish bench nodes 3310239 > based on 2/21/2019 commits
### stockfish matefinder bench nodes 5517434

#### Always leave the three lines below as is (any subsequent defines will override)
VERSION=
FEATURE1=
FEATURE2=
DSUFFIX1=
DSUFFIX2=
### Uncomment the line below for McCain, comment out for Stockfish
VERSION=maverick
####
### should be no reason to change anything below here!
### Only McCain and stockfish with feature 1 will be publicly distributed a this time, although feel free to play with privately
### features include : Cerebellum book functionality, play by Elo (UCI limit strength), keyboard shortcuts and a few other items
FEATURE1=add_features
### FEATURE2=matefinder

Feature 1 for those not familiar, include play by Elo and the use 3 opening books, keyboard shortcuts etc. )( also some GM book are available for download - tuned to play variety, not the GM's fav line)

[ljgw]

FrankWalter 2.3.4 (https://github.com/ljgw/frankwalter/releases/tag/v2.3.4)

• mostly tweaks to time management -
  I'm allowing the engine to stop thinking early provided:
  • It's at the end of a search iteration
  • there is no sudden drop in score

appears to result in about 50 elo in (mostly) selfplay,

[Graham Banks]

KnightX 1.93

http://technochess.free.fr/

[tmokonen]

Wow, it's been 14 years since the last version of KnightX.

[Guenther]

Not mentioned yet here or at CCW:

Bagatur 1.6b
tomitank 3.0 190223
Xiphos 0.4.24 (beta)

[Gabor Szots]

KnightX 1.93

http://technochess.free.fr/

What a surprise!

Unfortunately the cfg file hash settings do not seem to work. 119 MB is allocated whatever the setting.

[Roland Chastain]

Hello!

I have just uploaded a new version of Moustique on my website.

https://sites.google.com/view/eschecs/moustique

The ZIP file includes Pascal source code and Windows binaries.

It is weak but seems to work well.

Code: Select all

Rank Name                          Elo     +/-   Games   Score   Draws
   1 Dumb                          inf     nan       6  100.0%    0.0%
   2 Feuerstein                    120     nan       6   66.7%    0.0%
   3 Moustique                    -120     nan       6   33.3%    0.0%
   4 EasyPeasy                    -inf     nan       6    0.0%    0.0%
Finished match

It still ignores the parameters of the "go" command and always play at its own rhythm, often instantly, sometimes after one or two seconds.

Best regards.

Roland