New engine releases & news H2 2023

[Gabor Szots]

New engine Lishex by Michal Kurek (probably USA).
https://github.com/MKJM2/lishex

[Gabor Szots]

GOOB 1.8.9

https://github.com/Gabrielkaos/ChessEng ... /tag/1.8.9

No strength estimation is given but my quick tests show maybe +700. You don't see such a jump every day.

[Bmark]

Name: Oscar Gavira
Nationality: Spain
Engine name: Coiled 1.2
S.O: Windows & Linux
Protocol: UCI
Language: C
The engine is: Open Source. GPL-3.0 License.
Estimated ELO: ± 2800 Interna. ± 3380 con NNUE. Incremento ± 75 con 4CPU
Web: https://www.oscargavira.es/ajedrez/coiled
Github: https://github.com/Oscar-Gavira/Coiled
Download: https://www.oscargavira.es/descargar/co ... indows.zip or https://github.com/Oscar-Gavira/Coiled/ ... indows.zip


Thank.

[Guenther]

Luna 1.0.0
https://github.com/Mergener/lunachess

William's Engine now renamed to Pingu
current release r86
https://github.com/WillChing01/Pingu

[JacquesRW]

akimbo v0.4.1 - Final PST-only version:
https://github.com/JacquesRW/akimbo/rel ... 1-pst-only

This is the final PST-only version, as far as I'm aware its the 2nd strongest PST-only engine, pretty distantly behind PeSTO, as shown below.

Code: Select all

Score of akimbo-0.4.1 vs PeSTO-BMI2: 153 - 262 - 85  [0.391] 500
...      akimbo-0.4.1 playing White: 65 - 135 - 50  [0.360] 250
...      akimbo-0.4.1 playing Black: 88 - 127 - 35  [0.422] 250
...      White vs Black: 192 - 223 - 85  [0.469] 500
Elo difference: -77.0 +/- 28.3, LOS: 0.0 %, DrawRatio: 17.0 %

In self-play it is about 150 elo stronger than v0.4.0, so with any luck it'll be hovering somewhere close to 2900 Blitz.

This is more of a closure release before I make my proper next release (probably reasonably soon), which will have a significantly better evaluation, so please don't be bothered about testing it.

[Guenther]

Some things need quite some time...

13 years after Puca played last time in Olivier Devilles OpenWar tournaments as a private xb program I accidentally found
it 'released' unnoticed by anyone at github(because of no folder description, which is used by github search) around 10 months ago.

Puca 10.9.24 (New) by Shaun Howe (GBR) compiled in 09/2010
https://github.com/shaunihowe/pucachess
https://github.com/shaunihowe/pucachess ... indows.zip

I want to mention that I only found it accidentally, because the author is currently working on a complete rewrite in bitboards
under the name Freda (uci/xb) and this github folder is available since a couple of days with a proper site description
hinting to the late Puca release.

https://github.com/shaunihowe/freda

last participations of Puca:
http://www.open-aurec.com/chesswar/Ches ... 017PSt.htm
http://www.open-aurec.com/chesswar/Open ... stable.htm

Edit: It seems Freda 0.9 was already made a avilable as linux binary.
I had no problems to compile a win binaries (uci + xb).

Code: Select all

uci
id name Freda 0.9
id author Shaun Howe
uciok
isready
readyok
position startpos
go depth 10
info depth 5 seldepth 10 time 10 nodes 20095 nps 2009500 score cp 25 pv b1c3 b8c6 g1f3 g8f6 d2d4
info depth 6 seldepth 16 time 50 nodes 66560 nps 1331200 score cp 2 pv b1c3 b8c6 g1f3 g8f6 d2d4 d7d5
info depth 7 seldepth 19 time 120 nodes 143049 nps 1192000 score cp 24 pv b1c3 g8f6 g1f3 d7d5 d2d4 b8c6 c1e3
info depth 8 seldepth 22 time 450 nodes 679477 nps 1509900 score cp 2 pv b1c3 g8f6 g1f3 d7d5 d2d4 b8c6 c1e3 c8e6
bestmove b1c3  ponder g8f6

[Chessqueen]

Some things need quite some time...

13 years after Puca played last time in Olivier Devilles OpenWar tournaments as a private xb program I accidentally found
it 'released' unnoticed by anyone at github(because of no folder description, which is used by github search) around 10 months ago.

Puca 10.9.24 (New) by Shaun Howe (GBR) compiled in 09/2010
https://github.com/shaunihowe/pucachess
https://github.com/shaunihowe/pucachess ... indows.zip

I want to mention that I only found it accidentally, because the author is currently working on a complete rewrite in bitboards
under the name Freda (uci/xb) and this github folder is available since a couple of days with a proper site description
hinting to the late Puca release.

https://github.com/shaunihowe/freda

last participations of Puca:
http://www.open-aurec.com/chesswar/Ches ... 017PSt.htm
http://www.open-aurec.com/chesswar/Open ... stable.htm

Edit: It seems Freda 0.9 was already made a avilable as linux binary.
I had no problems to compile a win binaries (uci + xb).

Code: Select all

uci
id name Freda 0.9
id author Shaun Howe
uciok
isready
readyok
position startpos
go depth 10
info depth 5 seldepth 10 time 10 nodes 20095 nps 2009500 score cp 25 pv b1c3 b8c6 g1f3 g8f6 d2d4
info depth 6 seldepth 16 time 50 nodes 66560 nps 1331200 score cp 2 pv b1c3 b8c6 g1f3 g8f6 d2d4 d7d5
info depth 7 seldepth 19 time 120 nodes 143049 nps 1192000 score cp 24 pv b1c3 g8f6 g1f3 d7d5 d2d4 b8c6 c1e3
info depth 8 seldepth 22 time 450 nodes 679477 nps 1509900 score cp 2 pv b1c3 g8f6 g1f3 d7d5 d2d4 b8c6 c1e3 c8e6
bestmove b1c3  ponder g8f6

STOP CHESSEQUACK NOW!

TrollWatch ==> https://docs.google.com/spreadsheets/d/ ... 1399180242

[Guenther]

BlackMarlin 8.0
https://github.com/jnlt3/blackmarlin

Lishex 1.1.1
https://github.com/MKJM2/lishex

PurplePanda 11 + 12
https://github.com/Jakob256/PurplePanda

Sunbird (New) 1.0.0 by Jan M. D. Hansen (DEN)
https://github.com/jamadaha/Sunbird
(currently only as linux binary released)

[Carbec]

Zangdar 2.19.03

Mainly bug fixes, the only notable addition if king attacks in evaluation.
Elo should be around 2900.
For a reason I can't understand at the moment, tournaments with cutechess-cli have to use the option "restart=on".
Binaries can be found at : https://github.com/Carbecq/Zangdar/rele ... g/v2.19.03

Philippe

[Guenther]

It seems I forgot to inform and upload about a new version of an engine in 02/2023.

Trappist (which was tested in CCRL) was renamed to Blaze later and had a source only release in 02/2023 for Blaze 0.1.
I added the information to the chronology. Engine compilation is available too now.

https://github.com/antaz/blaze
https://rwbc-chess.de/download.htm

Edit: also compiled a bmi2+popcnt binary just today, but noticed it would run here too with the same speed ;)
(which means it uses no advanced hardware instructions anyway)