New engine releases & news 2021

[Bmark]

Name: Oscar Gavira
Nationality: Spain
Engine name: Coiled 1.0
Protocol: UCI
Language: C
The engine is: Open Source. GPL-3.0 License.
Estimated ELO: ± 3250 NNUE. ± 2650 Interna.
Web: https://www.oscargavira.es/?sec=Coiled_Informacion
Github: https://github.com/Oscar-Gavira/Coiled
Download: https://github.com/Oscar-Gavira/Coiled/ ... ed_1.0.zip

New: Basic internal evaluation, ± 2650 ELO, clear code. Auto detection of AVX2, SSE4.1, SSE3, SSE2 instructions supported by the CPU. Implemented the use of Bitbases scorpio. Fixed minor bugs...

Thank.

[Brunetti]

Estimated ELO: ± 3250 NNUE. ± 2650 Interna.
New: Basic internal evaluation, ± 2650 ELO, clear code. Auto detection of AVX2, SSE4.1, SSE3, SSE2 instructions supported by the CPU.

Hi Oscar,
I'm testing SSE 4.1 version with the red_neuronal.nnue network available in the engine folder, but it's performing around 2590 in 1'+1". What's wrong?

Thanx, Alex

[Sylwy]

Works perfectly for me in AVX2. Cecked NNUE use ?

[Brunetti]

Cecked NNUE use ?

Missed the related UCI option, thanx.

Code: Select all

option name NnueUse type check default false

Alex

[Bmark]

Cecked NNUE use ?

Missed the related UCI option, thanx.

Code: Select all

option name NnueUse type check default false

Alex

Hello Brunetti.

If you only get a strength of 2590 ELO it is by internal evaluation.
SSE4.1 is slower than AVX2 but not to go down to 2590 ELO. From 3250 that develops NNUE and AVX2.

It is probably misconfigured.
And as Sylwy comments,Cecked NNUE use?

If the CPU does not support AVX2 or SSE4.1 ... Coiled shows an error message when it cannot load the .dll with this technology.
Activate Debug window in GUI.

Greetings.

P.S. Thanks for trying Coiled.

[Brunetti]

SSE4.1 is slower than AVX2 but not to go down to 2590 ELO. From 3250 that develops NNUE and AVX2.

Ok after I've enabled the option. 1'+1" rating is ~equal to your estimate, 3250

Alex

[Brunetti]

KnightX 3.0 released.

http://technochess.free.fr/

1'+1" rating ~2640 (~+10 vs. 2.9).

Alex

[Brunetti]

Lynx 5.2 released.

https://github.com/lynx-chess/Lynx

1'+1" Elo ~1465 (~+10 vs. 5.1).

Alex

[Brunetti]

New engine: Dexter 1.1.1, by Nachiket Agrawal from India.

https://github.com/regalmoix/dexter

It's in its early stages; I've added a very basic time management to cope with UCI wtime/btime and avoid time losses in fast games, and made a Windows 64 compile: https://e4e6.com/download/
No time losses detected, but unfortunately it disconnects in 8% of the games.

1'+1" rating ~1490.

Alex

[Brunetti]

FoxSEE 7.27 released.

https://github.com/redsalmon91/FoxSEE

1'+1" rating ~ 2440, the same of 7.26.0 EM.

Alex