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by Dann Corbit
Sat Apr 04, 2020 9:57 pm
Forum: Computer Chess Club: General Topics
Topic: Nalimov file integrity tester
Replies: 3
Views: 45

Nalimov file integrity tester

I am downloading the Nalimov 6 man EGTB files.
There have been various interruptions and restarts and I am nervous about the correctness of the files.
I seem to recall a routine to validate the correctness of the files.
But I can't seem to find it.
Does anyone know where I might locate it.
by Dann Corbit
Sat Apr 04, 2020 7:32 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Count the number of nodes of perft(14) and beyond
Replies: 3
Views: 119

Re: Count the number of nodes of perft(14) and beyond

There are arbitrary precision libraries for many languages
Perft 14 and 15 have already been counted:
https://www.chessprogramming.org/Perft_Results
by Dann Corbit
Fri Apr 03, 2020 8:42 pm
Forum: Computer Chess Club: General Topics
Topic: Mate solving comparison (10 - 19 moves)
Replies: 41
Views: 4159

Re: Mate solving comparison (10 - 19 moves)

look at the posts by zenmaster.
there are lots of posts, so you will have to do multiple copy/paste operations to get them all
by Dann Corbit
Fri Apr 03, 2020 5:23 pm
Forum: Computer Chess Club: General Topics
Topic: Mate solving comparison (10 - 19 moves)
Replies: 41
Views: 4159

Re: Mate solving comparison (10 - 19 moves)

There are PGN versions created in this thread
by Dann Corbit
Thu Apr 02, 2020 1:40 am
Forum: Computer Chess Club: General Topics
Topic: Honey XIr1 source released
Replies: 13
Views: 824

Re: Honey XIr1 source released

To Mike:
I notice in the downloads that you have a threadripper build.
I have found that (at least for long analysis periods) the builds with znver2 are not as fast as my ordinary modern builds.
Did you do some customization, or is it just Honey that benefits?
by Dann Corbit
Mon Mar 30, 2020 7:30 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Using Freeware AI and Dynamically Generated Endgame Tablebases
Replies: 28
Views: 930

Re: Using Freeware AI and Dynamically Generated Endgame Tablebases

RE: "When the Chess-AI is computing its "best move" what algorithm is it using???" The algorithm is a neural network. There is a file of floating point numbers. The learning phase decided what features from the rules of chess and the configuration of the board are important. It writes these floating...
by Dann Corbit
Sun Mar 29, 2020 6:29 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Issue with Nemorino
Replies: 4
Views: 247

Re: Issue with Nemorino

What was wrong?
by Dann Corbit
Sun Mar 29, 2020 11:32 am
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Issue with Nemorino
Replies: 4
Views: 247

Re: Issue with Nemorino

Is it always in a way ahead or way behind situation? It could be fail high and fail low that never resolve and it simply does not respond in time. If it were as simple as that you could just add more time checks. Can you replicate the problem on your equipment? Especially, if you can get it to repro...
by Dann Corbit
Sun Mar 29, 2020 5:38 am
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Improving searching speeds
Replies: 8
Views: 339

Re: Improving searching speeds

Another side point: Early in engine development the most important thing to strive for is correctness. I invite you to read Fabian Letouzy's Fruit source code for an illustration on how to do your code work. It is a general software principle that holds in all disciplines: first make it right, then ...