Questions tagged [python]
Python is a general purpose and high level programming language. You can use Python for developing desktop GUI applications, websites and web applications.
41
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How do I get the solutions of the puzzle using stockfish?
I have a list of PGN files that are games between top grandmasters where one player resigned at the end of the game. I am looking to find solutions to those position using stockfish/or another chess ...
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2
votes
1
answer
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My Transposition Tables implementation slows down Alpha Beta Pruning
I have this implementation of alpha beta pruning I made a couple days ago. I've been trying to look into transposition tables.
When I tried this implementation it was slower than the original code. I ...
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2
votes
2
answers
661
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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-...
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4
votes
1
answer
298
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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 "...
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1
vote
1
answer
260
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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: ...
2
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2
answers
132
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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 ...
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1
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297
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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++.
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1
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296
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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....
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3
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2
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2k
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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 ...
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1
vote
1
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166
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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 ...
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2
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1
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417
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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 -...
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0
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264
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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 ...
1
vote
1
answer
344
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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?
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4
votes
1
answer
439
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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 ...
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1
vote
1
answer
709
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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 ...
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2
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0
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320
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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 ...
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1
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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.
...
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2
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1
answer
214
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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 ...
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2
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1
answer
322
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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 ...
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4
votes
2
answers
1k
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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('...
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4
votes
2
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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 ...
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1
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195
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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 ...
2
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1
answer
1k
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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 ?...
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1
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360
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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 ...
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1
vote
2
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189
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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. ...
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2
votes
1
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391
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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 ...
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2
answers
2k
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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 ...
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1
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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 ...
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2
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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?
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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 ...
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1
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791
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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 ...
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3
votes
1
answer
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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 ...
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1
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487
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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 ...
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1
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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/...
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2
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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 ...
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1
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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 ...
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3
votes
2
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436
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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 ...
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2
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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:
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3
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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(...
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3
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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 ...
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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 ...
