chess | fast chess library that use bitboards | Artificial Intelligence library

I have the following data stored in a DynamoDB table called elo-history.

I have a dataframe like this

I would need some help. I can only use vanila css, html , javascript

I want to create Buttons that show/hide certain rows in a table I created with with HTML. If i give every row a class, how can I attach the show/hiding of certain tr to a button? I tried the other solutions on similar questions but couldnt figure it out.

I'm making a chess opening trainer. I have a working game using cm-chessboard based on an example, and I'm using an API to get the computer's moves. I have condensed my code and removed this API so it's easier to read. In this version, the computer makes random moves from all valid chess moves.

The idea is, the API gets the best move, and then the player tries to input that move by moving a piece. If the player is correct, the computer moves for their next go, but if the player incorrectly guesses the best move, they are told 'Incorrect!' and are able to try again.

However, my code works fine when they are correct, but breaks when they are incorrect.

Here's what I have done:

I wanted to create a chess program using OOP. So I made a superclass Pieces, a subclass Bishop, and a UI class GameUI. I created a canvas in the class GameUI. I wanted, that when I instantiate an object bishop in the class GameUI, it shows an Image from a bishop, on the canvas.

The problem is, when I instantiate the Bishop, I don't see any image. So I tried to do the same with a text : instead of using the method create_image from the class Canvas, I used the method create_text, and it worked : I saw a text on the canvas. That means, the problem comes from the method create_image, and I don't understand it.

If I create an Image directly in the class GameUi, it works! but that's not what I want...

So I don't have any error message. I see the canvas (with a blue background), but no image on it.

Here's the code :

I'm building a very original game based in cubes you place in a sandbox world (a totally unique concept that will revolutionize gaming as we know it) and I'm working with the chunk generation. Here's what I have so far:

My blocks are defined in an object literal:

I'm working on a project dealing with chess games. After some processing of the data I need to get the FEN (https://en.wikipedia.org/wiki/Forsyth%E2%80%93Edwards_Notation) notation of a particular position. I've already written the code for each piece FEN encoding, but I'm having a hard time encoding the character that represents the number of consecutive squares that are not occupied.

As an example, take the following FEN code:

So, for room_attic, how can I let option A show different things when you have a different condition, like, when you have cheese you can throw in it when you have a ball of string, you can use it, and then come back two different results. And how to make an option one time, like after you pick up the ball of string, and when you go back to def_living room, it will not show again string information.

I am currently writing an image recognition script that makes a 2D array out of an image of a chess board for my chess project. However, I found it quite difficult to find which squares are empty:

So far, I have used the Canny edge detection on my image after applying the gaussian blur, which yielded the following results:

The code I used was: