Chess

Questions tagged [python]

Ask Question

Python is a general purpose and high level programming language. You can use Python for developing desktop GUI applications, websites and web applications.

39 questions
Newest
Active
Bountied
Unanswered
Filter by
Sorted by
Tagged with
2 votes
2 answers
547 views

Can't properly use python stockfish package in Mac

I'm trying to get stockfish for python working but I am running into issues. This is my code so far. from stockfish import Stockfish stockfish = Stockfish('/Users/Me/opt/anaconda3/lib/python3.9/site-...
user avatar
Ozzy08
  • 121
4 votes
1 answer
227 views

How do you nerf Stockfish to analyze the same position multiple times?

I want to make some statistics by analyzing the same position, multiple times, at different levels of Stockfish. Precisely, I would like Stockfish to analyze a specific position at different "...
user avatar
Giorgio
  • 43
1 vote
1 answer
162 views

Optimising Stockfish parameters when batch-analyzing with python-chess

I am running a python script that analyzes a large batch of PGN games (each of ~5,000 games) across and exports the games evaluations. It calls Stockfish 14 to analyze each game at depth 20. **[EDIT: ...
user avatar
David Smerdon
  • 13
2 votes
2 answers
107 views

Python Efficient Board Scoring Function To Use As Placeholder

I'm building a chess engine in Python. I'd like to find a board evaluation function that would be easy to put into my engine as a placeholder while I work on other aspects of the engine first. I would ...
user avatar
Sam Ragusa
  • 211
2 votes
1 answer
191 views

Chess engine in python

Are there any open-source chess engines that are written in primarily or fully in python? For example, Stockfish is written in primarily C++.
user avatar
Varun W.
  • 835
2 votes
1 answer
209 views

How do I convert a move from coordinate notation to algebraic notation?

The following Python code gives the best move in coordinate notation: import chess import chess.engine sfEngineTxt = "E:\Chess\Stockfish\stockfish_14_x64_modern" sfEngine = chess.engine....
user avatar
Hal Heinrich
  • 51
3 votes
1 answer
1k views

Quick method for generating FEN strings from PGN using Python Chess

Is there a fast way to generate FEN strings for every move in a PGN? I'm generating an opening book using the Lichess elite database and Python Chess, but Python Chess is taking a surprisingly long ...
user avatar
MattY
  • 133
1 vote
1 answer
152 views

How to avoid the same opening move in an engine built using Python chess

I created a chess engine using the Python chess library. It has an evaluation function (piece values, piece square values, and capture values) and minimax. Alpha-beta pruning is also implemented. At ...
user avatar
David Gladson
  • 173
2 votes
1 answer
379 views

How can I make my chess engine more efficient?

First, here's some context. My chess engine uses bitboards and works like this: A single gameboard is created as a 2d array at the start of the program. Like this: [[-4 -2 -3 -5 -6 -3 -2 -4] [-1 -1 -...
user avatar
Christian Dean
  • 643
6 votes
0 answers
245 views

Stockfish position evaluation component terms in Python?

I saw the excellent Javascript-based guide to how Stockfish evaluates (non-NNUE). Is there a python version out there, perhaps using python-chess? What I am trying to do (in case you have other ...
user avatar
Abhijit Mahabal
  • 69
1 vote
1 answer
316 views

Is there a chess.com Python api?

I want to program a bot and implement it on chess.com, but are there any types of chess.com Python api which will make the bot use the chess.com interface?
user avatar
Rashaad
  • 21
4 votes
1 answer
398 views

Obtaining the correct move from syzygy tablebases (Python)

I have created a chess engine in Python and now want to start using the endgame tables in syzygy. I have downloaded all the relevant files and is now ready to start. I have found how to access the ...
user avatar
Eli
  • 43
1 vote
1 answer
617 views

running stockfish with docker and docker-compose

I have access to a powerful computer at work so naturally I want to run a chess engine on it (stockfish for now and later leela). I am trying to use docker-compose to link a stockfish image and a ...
user avatar
nak3c
  • 688
2 votes
0 answers
313 views

How to turn off Contempt in engine analysis?

I'm trying to analyze a game with the python-chess package, and for that I want to turn off the "Analysis Contempt" option in Stockfish. However, it seems it doesn't work, and I don't know ...
user avatar
JohnnyQ
  • 223
3 votes
1 answer
3k views

Unable to run Stockfish on Python

I know this isn't a programming forum, though it's chess-related, hence the placement on here. Basically, I'm trying to setup stockfish with Python on my PC. I installed it via pip install stockfish. ...
user avatar
velotoy
  • 33
2 votes
1 answer
183 views

What's the best way to get the top n engine moves?

I want to use python-chess to get the top 5 Stockfish moves from a given position with a numerical evaluation for each move. Is it more accurate to run the engine for 10 minutes with MultiPV=5, or to ...
user avatar
Cory Butzon
  • 23
2 votes
1 answer
296 views

Chess Engine with Python-Based / API?

I went through the most popular chess engines, e.g. StockFish, Komodo, Rykba and so forth, but I wasn't able to a.) find an API or b.) a python based Engine - does anyone know a suitable project? I ...
user avatar
J. Doe
  • 29
4 votes
2 answers
1k views

Quickly converting board to bitboard representation using python-chess library

I would like to convert a given chess board into its bitboard representation, but my implementation is rather slow. Here is what I'm doing (using the python-chess package): board = chess.Board('...
user avatar
Arman
  • 171
4 votes
2 answers
915 views

How can I increase the search ply depth of my minimax function for my chess engine?

I have programmed a minimax function with alpha-beta pruning for a chess engine I am building. However, it is very slow and I cannot analyze to a deeper depth as it would take too much time. I believe ...
user avatar
Destaq
  • 183
2 votes
1 answer
175 views

Question on how to access a move on a line outside the main line using python-chess

I'm trying to write a simple code that is capable of reading a PGN file and searching for moves and comments throughout the variant tree. However, I have not been successful, I have not yet been able ...
user avatar
João Paulo Versiani Ladeia
  • 21
2 votes
1 answer
967 views

Communication with Stockfish engine via Python

I try to access the Stockfish engine via Python, but only get bestmove = a2a3. If I enter the same commands into the MAC-terminal, the engine calculates the correct move. Can anyone help me, please ?...
user avatar
Michael
  • 41
2 votes
1 answer
347 views

PythonChess - Get engine to predict a list of the best moves in a position

Say that I currently have a board, and then on that board I move my e2 pawn to e4. I'm looking for a way to get the engine to predict the X amount of best moves for black. I know how to predict the ...
user avatar
Tarun R
  • 81
1 vote
2 answers
182 views

Export KPvK endings positions (up to black/white symmetry) from ChessBase 15 using python-chess

I have the Mega Database 2020 from ChessBase and ChessBase 15. I am using ChessBase 15 to search the Mega Database 2020, my search criterion being all games ended through a KPvK (king and pawn vs. ...
user avatar
Olorin
  • 564
2 votes
1 answer
378 views

How can I send a UCI command to a chess engine in Python?

I have a followup question to my previous thread: Python script to let stockfish selfplay 10 games from a given position There are some engines that allow you to set a command that imposes that the ...
user avatar
Arturo
  • 243
2 votes
2 answers
1k views

Is there Python code to use the Leela neural network?

I am interested in doing some analyses of chess games using the neural network trained for Lc0. To that end I need to be able to turn PGN into the right kind of input vectors and to load and use the ...
user avatar
BlindKungFuMaster
  • 18.9k
4 votes
1 answer
1k views

Python script to let stockfish selfplay 10 games from a given position

I would like to have Stockfish to selfplay 10 games starting from a given position. Game should end after 10 moves. From the python-chess documentation there is an example of playing only one such ...
user avatar
Arturo
  • 243
3 votes
2 answers
1k views

How to install chess.pgn on python?

I don't know how to import chess.pgn on Python. I searched everywhere, but I didn't find anything. Can anybody here help me?
user avatar
Tortank92
  • 49
2 votes
3 answers
567 views

How to use Arena GUI outputs in a python program

I'm currently developing a self-playing chessboard on which I'd like to implement an Artificial Intelligence (AI) (currently it's Stockfish. I would like to know how I could, if I can, export Arena ...
user avatar
DGGB
  • 21
3 votes
1 answer
771 views

Python-chess : Are the move scores enough to rank moves from the most to least likely moves played by an engine?

My goal is to make a script to finding the most and least likely move an engine will play, and then make a list it. I tried using the scores to make such a list, with the best score equalling the most ...
user avatar
shar
  • 301
3 votes
1 answer
4k views

Python-chess : how to get a list for the best engine moves

I am working on a simple cheat detection script to find if a user used one of the top engine moves in a game, so I found this great python-chess library Additionally, I found this example to getting ...
user avatar
shar
  • 301
0 votes
1 answer
463 views

Python and Stockfish [duplicate]

I am trying to get Stockfish to work in Python 3. Just to get started on my project, I tried to have Stockfish think until a depth of 20. However, the program instantly returns that Stockfish ...
user avatar
r2d2bb8
  • 19
0 votes
1 answer
2k views

Why can't I use my stockfish engine with python chess? [closed]

I'm using python chess and I'm trying to use my stockfish 10 engine downloaded from the stockfish website. import chess.uci engine = chess.uci.popen_engine(r"stockfish-10-linux/Linux/...
user avatar
jenny LI
  • 9
4 votes
2 answers
2k views

Looking for a Python chess engine

I am looking for a Python chess engine package. It must be fully contained in Python, I don't want to download separate files for the engine itself and link them up somehow. All I want it to be able ...
user avatar
Fourth
  • 41
2 votes
1 answer
246 views

Python Engines to Beat to Take the Crown

Since Python is extremely slow, chess engines are almost never written using it. I've been building a Python engine to avoid this issue (through JIT compilation), and want to compare my engine ...
user avatar
Sam Ragusa
  • 211
3 votes
2 answers
405 views

How can I get multiple computer recommended lines in python-chess module?

In python-chess you can communicate with the engine on a given position. However the method presented in https://python-chess.readthedocs.io/en/latest/uci.html using the engine.go() function with only ...
user avatar
Qwertford
  • 231
4 votes
2 answers
1k views

Python and UCI engine

I'm working with Stockfish in Python 3. And when I do something like this: I get just "bestmove e2e4". How can I retrieve full information? Like this:
user avatar
MrTrushka
  • 43
1 vote
3 answers
383 views

Python-chess is_zeroing and is_capture operation outputs

I'm using python-chess to analyze a game. I have my code like this, and I expect 3 boolean outputs. print("is_castling: " + unicode(board.is_castling(node.move))); print("is_zeroing: " + unicode(...
user avatar
Bee
  • 165
4 votes
3 answers
2k views

Play chess in Python programming language?

I am searching for a program/library in Python which will let two users or a user and an AI play chess with each other. PS: I have found python-chess. Can this be used for the above along with a ...
user avatar
theshepherd
  • 41
13 votes
1 answer
5k views

How to convert PGN moves to long algebraic notation (in python)?

I want to read a PGN file and then advance to a certain move number, and feed that to an UCI engine. Turns out engines work using long algebraic notation, and PGNs are in short algebraic. What is an ...
user avatar
fastmultiplication
  • 233

Your privacy

By clicking “Accept all cookies”, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy.