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How to Make Chess in Python!
Chess is a classic board game that has been enjoyed for centuries. In this article, we will show you how to create a simple chess game using Python programming language.
Step 1: Setting up the Board
First, you need to create a chessboard using a 2D array in Python. You can represent the board with numbers or letters to denote each piece. For example, you can use ‘P’ for pawn, ‘R’ for rook, ‘N’ for knight, ‘B’ for bishop, ‘Q’ for queen, and ‘K’ for king.
“`
board = [
[‘R’, ‘N’, ‘B’, ‘Q’, ‘K’, ‘B’, ‘N’, ‘R’],
[‘P’, ‘P’, ‘P’, ‘P’, ‘P’, ‘P’, ‘P’, ‘P’],
[‘.’, ‘.’, ‘.’, ‘.’, ‘.’, ‘.’, ‘.’, ‘.’],
[‘.’, ‘.’, ‘.’, ‘.’, ‘.’, ‘.’, ‘.’, ‘.’],
[‘.’, ‘.’, ‘.’, ‘.’, ‘.’, ‘.’, ‘.’, ‘.’],
[‘.’, ‘.’, ‘.’, ‘.’, ‘.’, ‘.’, ‘.’, ‘.’],
[‘p’, ‘p’, ‘p’, ‘p’, ‘p’, ‘p’, ‘p’, ‘p’],
[‘r’, ‘n’, ‘b’, ‘q’, ‘k’, ‘b’, ‘n’, ‘r’]
]
“`
Step 2: Implementing the Rules
Next, you need to define the rules for each chess piece. For example, the pawn can only move forward one square at a time, the rook can move horizontally or vertically any number of squares, and the knight can move in an L-shape pattern.
“`
def is_valid_move(piece, start_pos, end_pos):
# Add code here to check if the move is valid for the given piece
return True
“`
Step 3: Creating the Game Loop
Finally, you need to create a game loop that will allow players to take turns moving their pieces. You can use a while loop to keep the game running until one player wins or the game ends in a stalemate.
“`
while not game_over:
# Add code here to display the board and get player input
# Add code here to check if the move is valid and update the board
# Add code here to check if a player has won or the game ends in a stalemate
“`
Step 4: Testing and Improving
Once you have implemented the basic game, you can test it by playing against a friend or creating an AI opponent. You can also add more features such as castling, en passant, and pawn promotion to make the game more challenging.
That’s it! You have now created a simple chess game in Python. Have fun playing and exploring different strategies!
Hello All, I made a follow-up video where we add en passant, castling and pawn promotion! Be sure to check that out here to continue the journey! https://www.youtube.com/watch?v=s2Dd_obh3fM&t=134s
I love this video! Though I would have liked to see a full checkmate situation, this was awesome. I do want to note though that I found something interesting. With the way the code is laid out, there is nothing to prevent the king from putting themself into check. That is something that has been stumping me so I really wish you had covered that.
but its not all good , because king can't move in area when this area is on cheek
please how do you run the code ? because I was running it in vscode and it's not going
what program are you using? I'm still new to this and when I run python it looks nothing like this
It seems like you spent lots of time debugging the moves_list's parentheses. Otherwise you wouldn't keep mentioning it so many times.
Isn't chess has 8×8 grid… 1:11
Wonderful tutorial! However, If you notice it is running slowly, or that it uses a lot of memory, an optimisation you could make would be to represent the board squares as a single 64 length array, instead of a nested array.
You could also then place the pieces inside the array, combining both location and piece type into a single array.
Is there any way to make the game resizable…I'm not so sure how to do that as the squares, images and text have to shrink and expand according to the window
Its really nice how you reused the code for the different movements. 👍
yes love the comments and explanations thx
If my screen size is small what value should i put in column and row in draw board
Can we make chess bot who play like top chess player I need video for it, any lead will be appropriate thanks 🙏
I followed this tutorial to a T, and I even tried to copy the code that you produced to see if I made an error but it keeps coming up with "SyntaxError: (unicode error) 'unicodeescape' codec can't decode bytes in position 2-3: truncated UXXXXXXXX escape". What does that mean and what can I do to fix it?
brother can u tell me which application is used like python itself or visual studio 2019 and in that python
תודה רבה!
אתה מסביר בצורה מאוד ברורה
אני נתקלתי בבעיה שאשמח אם תוכל לעזור לי בזה
כשאני לוחצת על pawn בselection מוכנס המיקום של אותו לחצן במערך המיקומים => selection = white_locations.index(click_coords)
וכשאני רוצה אם הלחצן שלחצתי אם הוא מיתוך הרשימה של הלחצנים שיש לי גישה אליהם אני כותבת את זה כך valid_options = options_list[selection]
והבעיה שלי שהoptions_list הגודל שלו יותר קטן מהseloction ואז התוכנית נופלת לי עם שגיאת IndexError: list index out of range
Can it be used for Renpy ?
thanks for the video, it really helped me with my school project
It will took me many days…
A great tutorial, brother. Thanks a lot.
I would love to watch more of such projects of yours.