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Mergener / illumina

Illumina chess engine.
MIT License
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Illegal move! #49

Closed toni-chess closed 2 months ago

toni-chess commented 3 months ago

Hi there! Illumina 1.0 r189 often makes illegal moves.

Hardware: Intel(R) Core(TM) i5-4570 3.20GHz 8GB RAM OS: Windows 10 x64 Pro GUI: Arena 3.5.1 TimeControl : 09s+0.1s

Illumina Configuration:

[Illumina 1.0 r189 x64(AVX2)] Hash=16 Threads=1 Contempt=0 MultiPV=1

Mergener commented 3 months ago

Hi @toni-chess! There's a known issue that I'll fix ASAP where Illumina tries to block checks by trying to promote a pawn with a double push. If that's the type of illegal move you've encountered, I'm already working on it and will push a fix soon. Anyway, thanks for the heads up!

Mergener commented 2 months ago

Fixed in PR #50

toni-chess commented 2 months ago

Hi Mergener! I sarted testing new version of your program(Illumina 1.0 x64(BMI2) and unfortunately the problem remain. I don't know what illegal move is but Arena report it. If you test Illumina under Arena you will see. hope you understand my poor english! best wisshes!

Mergener commented 2 months ago

Hi @toni-chess! I've recently tried to download Arena GUI for Windows but for some reason I couldn't get it from their official website. I'll try it again soon or I'll simply clone Arena and compile it in my machine. Having said that, I haven't really been getting illegal moves from Illumina ever since #50 , and I even added a quite big chunk of Perft test cases (mainly for FRC). For this reason, I suspect it could maybe be a problem with PV reporting, but I'm not sure. If possible, it'd be helpful to have more info on this issue.

toni-chess commented 2 months ago

Here is the link to Download Arena GUI 3.5.1 If the link not wrk, just copy and past it on link bar and then press enter. Normally it will be downladed in this way. I'm Brazilian fan but don't like Neymar :)

Mergener commented 2 months ago

Hi @toni-chess! Basically, Illumina is performing pretty badly in non-increment time controls, and when she gets really low on time illegal moves are being played. I'm working on both improving the time control code and preventing illegal moves from being outputted in any circumstances.

And I don't really like Neymar either!

Mergener commented 2 months ago

Fixed in PR #58.