Ceibo 0.7

Questions and comments related to CCRL testing study
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federicorojo
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Ceibo 0.7

Post by federicorojo »

Hi all,

I have just released a version 0.7 of Ceibo. Changes are as follows:
  • Board Representation: Bitboards! (old school; no rotated/no magic)
  • Movegen: completely reworked from scratch
  • Evaluation:
    • added king safety (my engine actually tries to protect the king ! how about that? )
    • added safe mobility
    • added more pawn structure terms
    • texel tuned
  • Null Move: tuned parameters, removed useless conditions and added new criteria
  • LMR: tuned for longer Time Controls
  • fixed issue where moves to mate where incorrectly reported
  • removed bugs and added new ones
  • + many minor changes, enhancements, code clean up, etc

Pls find below a Direct Download link to Ceibo 0.7 or go to the Downloads section of my site:
https://drive.google.com/file/d/1_2JcxW ... sp=sharing



Thanks! Fede
federicorojo
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Re: Ceibo 0.7

Post by federicorojo »

Hi Graham and team,

It seems Ceibo 0.7 refused to work on the first match of D8. Lars's Xeon had no issue with it, but Dany reported a DLL issue due to a missing C++ Runtime library. If that's the reason why it didnt work, I have compiled a new version which removes that DLL dependency.

Pls try this version if possible and replace for D8.

https://drive.google.com/file/d/19g1LY2 ... sp=sharing


Instead, if the issue is that the CPU does not support BMI1 pls try this one:

https://drive.google.com/file/d/1lvbAiQ ... sp=sharing


Thanks! Fede
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Graham Banks
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Re: Ceibo 0.7

Post by Graham Banks »

Thanks.

I had the dll with the version I was running.
I downloaded the noBMi2 exe and it runs on my old i5 for Division 8. :thumbup:
federicorojo
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Re: Ceibo 0.7

Post by federicorojo »

Awesome. Thanks Graham.
I had just now edited my previous post to include that link :thumbsup:
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Graham Banks
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Re: Ceibo 0.7

Post by Graham Banks »

federicorojo wrote: Sun Jun 27, 2021 10:26 pm Awesome. Thanks Graham.
I had just now edited my previous post to include that link :thumbsup:
First game is replaying now.
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Gabor Szots
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Re: Ceibo 0.7

Post by Gabor Szots »

Uh, Fede, I have just read your post, I would have started testing Ceibo already if I knew.

Cheers,
Gabor
federicorojo
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Re: Ceibo 0.7

Post by federicorojo »

No worries Gabor!
Glad to hear you'll start testing it. :D

Thanks, Fede
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