Myrddin 0.92 release

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JVMerlino
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Joined: Wed Mar 08, 2006 10:15 pm
Location: San Francisco, California

Myrddin 0.92 release

Post by JVMerlino »

<apologies for the cross-post>

Myrddin v0.92 has been released. Version 0.92 plays approximately 3060 ELO (CCRL) at 1 CPU. This is an improvement of approximately 70 points compared to version 0.91.

Change List:
-- Now doing incremental updates to the NN accumulator during make/unmake move
-- Now compiling with clang (within MSVC IDE)
-- Restored David Carteau's recommended eval multiplier - scores will be about 2x higher than before
-- Now clearing Killer move scores with every depth
-- Fixed potential instability/crash due to the move stack possibly becoming greater than MAX_DEPTH
-- Minor optimizations to PVS implementation and cutoff ordering

https://github.com/JVMerlino/Myrddin/re ... Myrddin092

As always, many thanks to the community, particularly those who have helped with Myrddin's development, and put up with all my complaining....

jm
David Carteau
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Location: France
Full name: David Carteau

Re: Myrddin 0.92 release

Post by David Carteau »

JVMerlino wrote: Mon Dec 09, 2024 12:01 am [...] This is an improvement of approximately 70 points compared to version 0.91. [...]
Well done John !
Download the Orion chess engine --- Train your NNUE with the Cerebrum library --- Contribute to the Nostradamus experiment !
JVMerlino
Posts: 1404
Joined: Wed Mar 08, 2006 10:15 pm
Location: San Francisco, California

Re: Myrddin 0.92 release

Post by JVMerlino »

David Carteau wrote: Mon Dec 09, 2024 7:39 am
JVMerlino wrote: Mon Dec 09, 2024 12:01 am [...] This is an improvement of approximately 70 points compared to version 0.91. [...]
Well done John !
Thanks, David!
Dann Corbit
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Joined: Wed Mar 08, 2006 8:57 pm
Location: Redmond, WA USA

Re: Myrddin 0.92 release

Post by Dann Corbit »

Thanks, I got my copy.
70 Elo is a mighty leap. Good job!
Taking ideas is not a vice, it is a virtue. We have another word for this. It is called learning.
But sharing ideas is an even greater virtue. We have another word for this. It is called teaching.