Gyatso v1.3.0 Released

Discussion of chess software programming and technical issues.

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GyatsoYT
Posts: 46
Joined: Fri May 09, 2025 12:27 pm
Full name: Gyatso Neesham

Gyatso v1.3.0 Released

Post by GyatsoYT »

I’ve just released a new version of my chess engine, Gyatso v1.3.0, and wanted to share it here.

The engine is open source and still under active development. I’m continuously working on improving its strength, search, and evaluation.

I would appreciate any testing, feedback, or Elo estimates from those willing to try it.

Repository:
https://github.com/GyatsoYT/GyatsoChess

Release:
https://github.com/GyatsoYT/GyatsoChess ... tag/v1.3.0

— Gyatso
User avatar
Steve Maughan
Posts: 1325
Joined: Wed Mar 08, 2006 8:28 pm
Location: Florida, USA

Re: Gyatso v1.3.0 Released

Post by Steve Maughan »

Hi — congrats on the release. A jump of 550 elo is amazing! What is the source of the huge strength increate from 1.2 to 1.3?

— Steve
http://www.chessprogramming.net - Juggernaut & Maverick Chess Engine
GyatsoYT
Posts: 46
Joined: Fri May 09, 2025 12:27 pm
Full name: Gyatso Neesham

Re: Gyatso v1.3.0 Released

Post by GyatsoYT »

It's not 550 elo jump but more than 450 anyways
I introduced NNUE
Also added LMP
Removed my old bugged history implementation all kinds of history and reimplemented only butterfly history.
And a few small changes here and there. Like removing improving flag and stuff.
Bas
Posts: 16
Joined: Mon Jan 12, 2026 6:44 pm
Full name: Bas Hamstra

Re: Gyatso v1.3.0 Released

Post by Bas »

Good Job! I also just implemented NNUE, maybe we can compare experiences (about NNUE architecture) one day. And Nim looks really nice, I have gone from C++ to JAVA in the past (for work) but I am always jealous on the shortness of Python, where you can often do complex things in just one line, and still be understandable/readable. Visited he Nim page it looks super interesting, no stability issues? Missing libs etc?

Bas
GyatsoYT wrote: Mon Mar 30, 2026 11:30 am I’ve just released a new version of my chess engine, Gyatso v1.3.0, and wanted to share it here.

The engine is open source and still under active development. I’m continuously working on improving its strength, search, and evaluation.

I would appreciate any testing, feedback, or Elo estimates from those willing to try it.

Repository:
https://github.com/GyatsoYT/GyatsoChess

Release:
https://github.com/GyatsoYT/GyatsoChess ... tag/v1.3.0

— Gyatso
GyatsoYT
Posts: 46
Joined: Fri May 09, 2025 12:27 pm
Full name: Gyatso Neesham

Re: Gyatso v1.3.0 Released

Post by GyatsoYT »

Bas wrote: Mon Apr 06, 2026 11:12 pm Good Job! I also just implemented NNUE, maybe we can compare experiences (about NNUE architecture) one day. And Nim looks really nice, I have gone from C++ to JAVA in the past (for work) but I am always jealous on the shortness of Python, where you can often do complex things in just one line, and still be understandable/readable. Visited he Nim page it looks super interesting, no stability issues? Missing libs etc?

Bas
GyatsoYT wrote: Mon Mar 30, 2026 11:30 am I’ve just released a new version of my chess engine, Gyatso v1.3.0, and wanted to share it here.

The engine is open source and still under active development. I’m continuously working on improving its strength, search, and evaluation.

I would appreciate any testing, feedback, or Elo estimates from those willing to try it.

Repository:
https://github.com/GyatsoYT/GyatsoChess

Release:
https://github.com/GyatsoYT/GyatsoChess ... tag/v1.3.0

— Gyatso
Nim is great actually, it does the job very well
Although I can't say much about the library part since the community is not so big.

You will still find libraries but not like python.