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Why do you say besides CPW when there are still lots of good evaluation functions that you don't have yet? CPW is good. There are the first simple evaluation features. You can start here: https://www.chessprogramming.org/Evaluation with Basic Evaluation Features. Examples: https://www.chessprogrammi...

I have another question or thought in this discussion.
Some people use piece square tables in the evaluation and for move ordering in the search.
May be the piece square tables for evaluation - especially if auto tuned - are not the best tables
to be used for move ordering. What do you think?

Sven wrote: Maintaining 2x6 piece bitboards, 2 color bitboards and one "all pieces" bitboard involves some redundancy. If you are looking for speed then you might try to avoid storing more information than needed, and let some information be calculated on the fly. ... Usually doing less memory opera...

It looks like you use Python. That's not a problem but you may have to translate some syntax from C/C++ to Python. Have a look at the youtube series Bitboard CHESS ENGINE in C https://www.youtube.com/playlist?list=PLmN0neTso3Jxh8ZIylk74JpwfiWNI76Cs 1. How do I represent the actual board? In my old e...

Since this is alphabeta() and not perft() I think you use the normal search function. Do you use the transposition table (hash table)? And don't clear it between calls? Do you count the nodes before or after the hash table access? Do you skip branches because of hash table lookup results? Even when ...

I don't know a forum of the kind that you are looking for. It is not easy for a forum to include the wide range from beginners to experts. https://www.google.com/ First try is Google. Many problems are already diskussed and solved. This will often lead to one of the next addresses: http://www.cplusp...

Just an idea, not tested: - Do not use a very big evaluation function. Use a small one with only a few patterns. Like just using piece square tables, passers, simple mobility and king safety pawn shields. - Give a high value to an open center with no blocked pawns. - Give the material a higher weigh...

May be this post and picture can help a bit: Winboard state machine diagram http://www.talkchess.com/forum3/viewtopic.php?f=7&t=70502&p=796223&hilit=Harald+state+machine#p796223 But I think this is even a little bit too complicated and the GUI + engine will stay even more in the force mode and less ...

I don't know enough of NNUE and my knowledge of neural nets is a little bit rusty also. But I try to explain it as I understand it. A neuron in a net is a unit with some inputs that can be activated or not (0, 1) and an output that is also 0 or 1. It calculates its output as a function of the sum of...

I have A8 as bit 63, H8 as bit 56 A1 as bit 07, H1 as bit 00 Then I can read a 64 bit hex number and see the bits easily on the whole board in my imagination since I know the bit representation from 0 to f by heart. For tables I use flipping macros. Then I write them down in a human readable way wit...