CCRL Discussion Board

Correct. Each hash entry is 16 bytes, so setting hashbits=24 means you use 2^28 bytes or 256MB. I made an issue to have a “hash” option similar to how other engines do it.

Fantastic! Thanks so much!

Have you had a chance to test this yet? Version 1.0.2 works for me on a fresh install of Windows 10 now

Thanks for your efforts and patience with this. The BMI2 exe you provide does not run on my PC, it complains of several missing DLL's. My mistake - TIL about static linking. This should be fixed now in v1.0.2: https://github.com/teswayze/rengar/releases/tag/v1.0.2 I tried the makefile but it issued ...

Roughly how strong do you estimate Rengar 1.0.1 64-bit to be? At blitz time controls, I'd guess around 2500. This is based off of some lichess bot games agains CCRL rated engines. Rengar is 1/6 against Odonata, 0/5 against Cheng, 4/4 against Eubos, 2.5/4 against Fatalii, 1.5/2 against Fornax, 0/2 a...

I released v1.0.1. Same as the original, but with windows binaries and compilable without BMI2 instructions.

https://github.com/teswayze/rengar/releases/tag/v1.0.1

It would be nice, if you would add an alternative (slower way) for bitmasking except using 'pext', which would allow to compile it for older hardware too. Done: https://github.com/teswayze/rengar/pull/4 You can compile with make no-BMI2=1 or make no-BMI=1 Time to depth was up 50% when I benchmarked...

Gotcha - I’m working on a Windows compatible version now

Hi, As a project to learn C++, I wrote a chess engine from scratch. I would love for it to have an official rating! Source code and release binary for mac: https://github.com/teswayze/rengar/ Based on results from lichess bot games agains CCRL rated engines, I'd expect a rating in the ballpark of 2500