Passant | Programming language made up of chess games | Compiler library

I gonna try to be brief. Two Forms:

Form1 (button1, textBox1)

I have developed a chess engine which is playing at roughly 3300 Elo. I need to process and tune a set of positions I have generated with my engine. For this, it would be ideal to store roughly more than 1B positions in my RAM. I am trying to figure out the most efficient way to store pure positional chess data.

Information like castling, en passant etc. can be ignored.

1. The naive aproach would be using bitboards which would require exactly 12 bitboards (for each piece) which would end up with 12*8=96 byte.
2. Alternatively, I could only use 8 bitboards where I use 6 for the different pieces and 2 more for the different colors =64 byte.
3. Theoretically, I could get away with 7 bitboards using the aproach above. I would not need 2 bitboards for the colors. It would be enough to just have those for white and I could easily conclude if a piece is white or black. = 56 byte
4. I could come up with further compression using bitboards which would resolve in 48 byte yet I cannot get below that with bitboards.
5. One could also store the pure positional information for each piece. e.g. use the first 6 bits for the white king, the next 6 bits for the black king, the next 6 bits for the white queen etc. Note that one would require 8*(6+3) bits for pawns here cause pawns could promote to other pieces which would need to be encoded within 3 bits. Problematic would be encoding the absence of a piece.
6. There are some compression techniques like Huffman trees, yet I would also require some fast computation with the pieces on the board.

So what would be the fastest/best compression technique to store a chess position?

Greetings Finn

I'm trying to implement a function in Haskell that returns a list containing all possible moves for the player who's up. The function's only argument is a String composed of an actual state of the board (in Forsyth-Edwards Notation ) followed by the moving player(b/w).

Notation example : rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w (starting board state)

A move is transmitted as a string of the form [origin]-[destination]. The destination is always a position of the form [column][row], where the lower left square is called a1 and the upper right square is called h8. A move would be for example the move "b3-c4". (no castling/En-passant).

In Java I would use a 2d Array for the Board, but in Haskell I can't find a similar solution (I'm new to functional programming).

What would be a good way/data structure to represent the chess board in?

I'm currently working on a chess engine, which is working so far but is taking forever to generate moves. The check detection takes by far the longest since many moves have to be generated.

I got stuck after trying many things and can't really figure out how to make it more efficient. Here is how I do it:

To check if a move is allowed/legal, I check, if the side making the move is in check afterwards:

I'm still learning jquery and I'm facing an issue that probably a lot of people have been facing which is just logic but I can't seem to find a good way to learn how to do that.

So my issue is the following: I'm creating elements called .lieu on the page using jquery. Basically, when you enter a text and click "OK" you created another .lieu that is supposed to display the text "en passant par le bois des lutins" in the destinations tab. The first one that is created with html is working but not the other ones. It seems the script is able to execute on the elements created using html (that's probably due to:)

I'm using Pycharm Community 2020 as my IDE. Pygame 1.9.6. I'm using Python 3.7.4. I'm coding a working chess board. Right now I'm in the middle of programming valid pawns move for 'w' or white. When there is a black pawn say in front of a white pawn it can move it in front of it or even capture it. Which when opposite pawns in front of it can capture one another or move it, only the sides. You can only move a white pawn up 1 or 2 spaces for the first pawn move, but I can move it anywhere. I don't know why it does that.

Code:

I am trying to convert png image to gif and jpg format. I am using the code that I've found at Microsoft documentation.

I've created git-hub example by modifying this code into this:

I made a fully functional chess game in Unity using C#. Now i want to add AI, for the chess engine i went with Stockfish. I got the engine inside the game but it does nothing because it cant communicate with the board.

To communicate i need to make a FEN string per row, starting on the top left, the FEN string looks like this:

I am trying to merge two dataframes, one containing variables like Date, Author, Paper, and IDs, the other containing texts and their IDs. I add, because it might have some importance, that the dataframe containing the texts has been obtained by converting a Vcorpus into a dataframe with the following code :