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============================== My email: jotes@go2.pl



Chess engine: Clarity 7.0.0

on


Clarity
The C++ rewrite is complete! Clarity is now faster and better, using new techniques, and I have learned a new language!
For those who didn't see the engine in its depressing, confusing, error-filled C# state, this engine was originally written in C# before I decided to switch to C++. That decision was one of the greatest I think I've ever had, as the engine is now faster, easier to read, less error-filled(hopefully), and better overall.

Rating CEDR=3508

v.7.0.0:
This release is a big one, as it marks the transition of Clarity from using my original data to using data generated by Leela, which with it comes much elo, but little originality. I will still work to find ways to be original, such as making my own trainer and inventing data-sorting methods. I understand that it may make it less eligible for events such as CCC or TCEC, however, due to my very limited hardware and time, I believe that this is best since it means that data generation time is no longer the main thing preventing further NNUE developments.

The bulk of changes in this version are network improvements, such as horizontal mirroring, king bucketing, and an increase in size, and since they also have resulted in slowdowns, this version should scale much better than the speedup-heavy changes of V6.0.0

How to choose what binary to use:
Each binary here is separated by the features that your CPU has, v1 has a simple popcnt instruction, but I'm not sure about v2, and v3 is divided into bmi2 and magic bitboard builds (if you have a Ryzen 3000 series CPU, go for the v3_magic), and v4 has everything.

If you are unsure about what features your CPU has, start from v4 and attempt to run it, if it doesn't run, move one lower, and keep doing that until a build runs. If none of them run, open an issue and I'll attempt to help.

As usual, tests are done using 8moves_v3, at whatever time control is mentioned.

Elo   | 61.18 +- 13.18 (95%)
Conf  | 8.0+0.08s Threads=1 Hash=16MB
Games | N: 1004 W: 299 L: 124 D: 581
Penta | [4, 66, 223, 169, 40]
https://vast342.pythonanywhere.com/test/16/
Elo   | 94.87 +- 11.97 (95%)
Conf  | 40.0+0.40s Threads=1 Hash=64MB
Games | N: 1002 W: 315 L: 48 D: 639
Penta | [0, 25, 228, 204, 44]
https://vast342.pythonanywhere.com/test/17/

Clarity 7.0.0 download


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