TalkChess.com

Ah, that's not so bad then

. But I hope you do realise that you will have to rewrite Stockfish's evaluation almost completely. You can't just convert SF's current (usually additive) scoring components into probabilities or "probability components". (And this thread has "Stockfish" in the title.) No need, NN eval for SF is al...

The code seems fine to me. If you change the find function to just return false (which should effectively disable hashing), do you still get the wrong value? If you get the right value, then I think your hash function must be missing a parameter, for example, en passant or castling rights. The numbe...

Ok, it is getting late and it is Friday, but I have pasted this in to my code and get pretty much the same results as my original Perft routine... I am obviously doing something silly... hopefully clarity will come in the morning. Note that if you use "nodes" to calculate nodes per second, it will ...

Does anyone know applications of PDEP and PEXT in a hot loop, outside of computer chess? That should tell us whether AMD will ever prioritize these implementations.

A FEN parser will be at least 5 times more complex. Hm yeah, seems reasonable. To play automated games under WinBoard at the default TC only requires: ... So based on this, I guess this is already a solved problem. The only piece missing, I would argue, is this isn't very well documented (or rather...

In the end this commandline will be stripped from the engine and become an optional feature that can be enabled during compiling. The protocols start with identification commands (uci starts with "uci", cecp starts with "xboard"). Your engine can support all of them, and just dynamically select the...

When you do want to have a function for position setup in a minimal protocol, rather than using moves or illegal moves, you could add understanding of drop moves, like P@e2, and a command for clearing the board. I like this idea. You'd also probably want some commands for handling castling rights, ...

If you would abandon the requirement that input moves must be legal, it becomes much easier to set up a given position. Just move pieces that are not yet where they are supposed to be to the square where they should go. If that square is occupied, just move the occupant to an empty square first. Yo...

As much as it's a bad idea to fragment protocols for any technology, I think there's room for a separate minimalistic protocol separate from CECP and UCI. Chiefly, it would implement only the minimum required instructions to play a game of chess, and it would be synchronous. The purpose for this is ...