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Performance improvements to chess/polyglot.py (5 micro-optimisations)

Status: Open.

#1191 In niklasf/python-chess;

· shawnbale opened on Jun 5, 2026

claim-ahead rejects valid moves that deliver checkmate (or stalemate)

Status: Open.

#1188 In niklasf/python-chess;

· dlbbld opened on May 27, 2026

Get parsed comments from pgn

Status: Open.

#1174 In niklasf/python-chess;

· leszekhanusz opened on Nov 26, 2025

Feature Request: Distinguish between "pre-move" and "post-move" comments in GameNode

Status: Open.

#1171 In niklasf/python-chess;

· aslyamov opened on Nov 19, 2025

Docstring could be more clear

Status: Open.

#1167 In niklasf/python-chess;

· Mark799 opened on Oct 27, 2025

Document info line aggregration

engineChess engine integrationChess engine integration

Status: Open.

#1165 In niklasf/python-chess;

· DanijelDomazet opened on Oct 15, 2025

Feature Request: Interactive Pygame Replay Visualizer

Status: Open.

#1164 In niklasf/python-chess;

· Mark799 opened on Oct 12, 2025

assert while using an UCI program

bug

engineChess engine integrationChess engine integration

Status: Open.

#1161 In niklasf/python-chess;

· folkertvanheusden opened on Sep 7, 2025

feautre: json export, PR proposal

Status: Open.

#1159 In niklasf/python-chess;

· benedekfazekas opened on Jul 5, 2025

feature: CachedEngine, useful for tests

Status: Open.

#1157 In niklasf/python-chess;

· kraktus opened on Jun 2, 2025

list(board.pieces(chess.KING, chess.BLACK))[0] IndexError: list index out of range

Status: Open.

#1156 In niklasf/python-chess;

· MattisIsEpic opened on May 21, 2025

Reconsider Cython support as an Optional feature accessible from setup.py

Status: Open.

#1151 In niklasf/python-chess;

· Phillyclause89 opened on Apr 26, 2025