New engine: Vengeance

[amarthapa]

Hi all, my name is Amar Thapa. I am from India. I am happy to announce the release of the Vengeance chess engine.

Development of this engine was going on for some years during my free time and I was able to finish version 1.0.0 recently.

More details of the engine can be found here -> https://bitbucket.org/amarthapa/vengeance/src/main/ .

It is an open-source engine with an estimated elo of 2700.

Thanks to all open-source engines, chess websites, and forums for helping me develop this engine.

[Graham Banks]

We will need a compile, preferably AVX2 or BMi2, so that we can test it.

[amarthapa]

Hi, build instructions can be found in the readme.

As of now, I can provide binaries for Linux but I don't know if it can be compatible with other systems.

It would be better if the users build the source code in their system with GCC which ensures compatibility.

Thanks.

[Ray]

You are going to have to provide Windows exes. None of our testers use Linux, and none of us are experts in compiling code.

[amarthapa]

Okay, I will look into it. Since I haven't developed the engine using Windows. It will take some time before I post the exes.

[Graham Banks]

Okay, I will look into it. Since I haven't developed the engine using Windows. It will take some time before I post the exes.

A fellow programmer might do this for you if you ask.

[amarthapa]

Hi, the exe for Windows can be found here -> https://drive.google.com/file/d/1U_9iVB ... share_link .

[amarthapa]

Okay, I will look into it. Since I haven't developed the engine using Windows. It will take some time before I post the exes.

A fellow programmer might do this for you if you ask.

Yeah, that would be helpful. Anyways I have posted a link to the exe. Let me know if this works.

[Graham Banks]

Okay, I will look into it. Since I haven't developed the engine using Windows. It will take some time before I post the exes.

A fellow programmer might do this for you if you ask.

Yeah, that would be helpful. Anyways I have posted a link to the exe. Let me know if this works.

[amarthapa]

Okay, I will need to figure this out. Will post something in a day or so.

[Graham Banks]

Okay, I will need to figure this out. Will post something in a day or so.

Okay. Do you belong to one of the engine programming channels in Discord?

[amarthapa]

I don't. Can you tell me any one of them?

[Graham Banks]

I don't. Can you tell me any one of them?

https://discord.gg/k9s7hdfZ

[amarthapa]

I don't. Can you tell me any one of them?

https://discord.gg/k9s7hdfZ

Thanks, I joined it.

[amarthapa]

Okay, I will need to figure this out. Will post something in a day or so.

Here is a new build for Windows https://drive.google.com/file/d/1G7qZtf ... share_link . This should work fine. I tested it using Wine for Linux.

[Graham Banks]

Okay, I will need to figure this out. Will post something in a day or so.

Here is a new build for Windows https://drive.google.com/file/d/1G7qZtf ... share_link . This should work fine. I tested it using Wine for Linux.

Nothing happens when I doubleclick on the exe.

[amarthapa]

Okay, I will need to figure this out. Will post something in a day or so.

Here is a new build for Windows https://drive.google.com/file/d/1G7qZtf ... share_link . This should work fine. I tested it using Wine for Linux.

Nothing happens when I doubleclick on the exe.

Could you open a command prompt in windows and cd into the directory containing the engine and then type Vengeance.exe in the command prompt? Alternatively, you can also import the exe in some kind of uci-enabled chess GUI like Arena or CuteChess Gui. Its a uci engine, so you need to give it uci commands for it to give outputs.

"Press Windows+R to open “Run” box. Type “cmd” and then click “OK” to open a regular Command Prompt."

You could also drag and drop the exe file in the said command prompt. And then hit enter to run the engine.

[Graham Banks]

If I create it as an engine in ChessGUI, there are no parameters visible to set, and when it is its turn to move, it just exits.

[amarthapa]

If I create it as an engine in ChessGUI, there are no parameters visible to set, and when it is its turn to move, it just exits.

Ok. I think I will have to build it in a windows system for compatibility. I will post the executables once I do that.

[Gabor Szots]

I managed to compile it for Windows using the makefile, also by directly using GCC. However, in both cases the exe does not run, it seems it requires a network file to run. Where can I download it from?

EDIT: I have just read the readme and it says Vengeance does not use NNUE evaluation. Still, upon starting the engine outputs this line: Not able to load network.

[amarthapa]

I managed to compile it for Windows using the makefile, also by directly using GCC. However, in both cases the exe does not run, it seems it requires a network file to run. Where can I download it from?

EDIT: I have just read the readme and it says Vengeance does not use NNUE evaluation. Still, upon starting the engine outputs this line: Not able to load network.

I see. I mistakenly added a network file for NNUE when I was doing some tests. However, this current version does not use NNUE but has some code for it. I will either post the said network file or remove some code related to it and post a new exe.

Thanks for the bug hunt!

The NNUE code is there but currently its a work in progress.

[amarthapa]

I managed to compile it for Windows using the makefile, also by directly using GCC. However, in both cases the exe does not run, it seems it requires a network file to run. Where can I download it from?

EDIT: I have just read the readme and it says Vengeance does not use NNUE evaluation. Still, upon starting the engine outputs this line: Not able to load network.

I see. I mistakenly added a network file for NNUE when I was doing some tests. However, this current version does not use NNUE but has some code for it. I will either post the said network file or remove some code related to it and post a new exe.

Thanks for the bug hunt!

Here is the link for the new exe -> https://drive.google.com/file/d/1dd0TYK ... share_link

[Gabor Szots]

I managed to compile it for Windows using the makefile, also by directly using GCC. However, in both cases the exe does not run, it seems it requires a network file to run. Where can I download it from?

EDIT: I have just read the readme and it says Vengeance does not use NNUE evaluation. Still, upon starting the engine outputs this line: Not able to load network.

I see. I mistakenly added a network file for NNUE when I was doing some tests. However, this current version does not use NNUE but has some code for it. I will either post the said network file or remove some code related to it and post a new exe.

Thanks for the bug hunt!

Here is the link for the new exe -> https://drive.google.com/file/d/1dd0TYK ... share_link

Please update the sources accordingly as well.

[amarthapa]

I managed to compile it for Windows using the makefile, also by directly using GCC. However, in both cases the exe does not run, it seems it requires a network file to run. Where can I download it from?

EDIT: I have just read the readme and it says Vengeance does not use NNUE evaluation. Still, upon starting the engine outputs this line: Not able to load network.

I see. I mistakenly added a network file for NNUE when I was doing some tests. However, this current version does not use NNUE but has some code for it. I will either post the said network file or remove some code related to it and post a new exe.

Thanks for the bug hunt!

Here is the link for the new exe -> https://drive.google.com/file/d/1dd0TYK ... share_link

Please update the sources accordingly as well.

Updated.

[Gabor Szots]

Thanks, this works. I attach the exe obtained using the makefile.