Tags: niklasf/python-chess
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python-chess v1.11.0 Changes: * Drop support for Python 3.7, which has reached its end of life. * ``chess.engine.EventLoopPolicy`` is no longer needed and now merely an alias for the default event loop policy. * If available and requested via ``setpgrp``, use ``process_group`` support from Python 3.11 for engine processes. * No longer eagerly reject 8 piece positions in ``chess.syzygy``, so that some 8 piece positions with decisive captures can be probed successfully. * The string wrapper returned by ``chess.svg`` functions now also implements ``_repr_html_``. * Significant changes to ``chess.engine`` internals: ``chess.engine.BaseCommand`` methods other than the constructor no longer receive ``engine: Protocol``. * Significant changes to board state internals: Subclasses of ``chess.Board`` can no longer hook into board state recording/restoration and need to override relevant methods instead (``clear_stack``, ``copy``, ``root``, ``push``, ``pop``). New features: * Add ``chess.pgn.Game.time_control()`` and related data models. * Add model ``sf16.1`` for ``chess.engine.Score.wdl()``, the new default. Bugfixes: * Fix unsolicited engine output may cause assertion errors with regard to command states. * Fix handling of whitespace in UCI engine communication. * For ``chess.Board.epd()`` and ``chess.Board.set_epd()``, require that EPD opcodes start with a letter.
python-chess v1.10.0
New features:
* Use ``chess.engine.Opponent`` to send opponent information to engines.
* Inform engines about the game result using
``chess.engine.Protocol.send_game_result()``.
* Add ``chess.engine.Limit.clock_id``.
* Add ``chess.svg.board(..., borders=True)``.
* Avoid rendering background behind SVG boards to better support transparency.
* Add ``chess.pgn.BaseVisitor.begin_parse_san()``.
* Introduce new distance metrics ``chess.square_manhattan_distance()`` and
``chess.square_knight_distance()``.
Bugfixes:
* Fix ``chess.pgn.GameNode.eval()`` sometimes off by one centipawn.
* Fix handling of additional spaces between UCI option tokens.
* Handle implicit XBoard engine resignation via output like
``0-1 {White resigns}``.
Changes:
* Add model ``sf16`` for ``chess.engine.Score.wdl()``, the new default.
* Update ``lichess`` WDL model.
* Keep PGN headers that do not belong to the Seven Tag Roster in insertion
order.
* Halve the number of open file descriptors maintained by tablebases
and opening books.
* Reduce verbosity of logged ``chess.pgn`` errors.
python-chess v1.9.4 Bugfixes: * Fix ``PovScore.wdl()`` ignored ``model`` and ``ply`` parameters. * ``chess.syzygy``: Check that board matches tablebase variant. New features: * Add model ``sf15.1`` for ``chess.engine.Score.wdl()``. * Raise more specific exceptions: ``chess.IllegalMoveError``, ``chess.AmbiguousMoveError``, and ``chess.InvalidMoveError``.
python-chess v1.9.3 Bugfixes: * Fix some valid characters were not accepted in PGN tag names. Changes: * Skip over syntactically invalid PGN tags. * Detect Antichess insufficient material with two opposing knights. New features: * Add ``chess.Board.unicode(..., orientation=chess.WHITE)``.
python-chess v1.9.1 Bugfixes: * Reject pawn capture SAN if the original file is not specified, e.g., ``d5`` will no longer match ``cxd5``. Changes: * Tweak handling of whitespace in PGN comments: When parsing, any leading and trailing whitespace (beyond one space) is preserved. When joining multiple PGN comments, they are now separated with a space instead of a newline character. When removing annotations from comments, leftover whitespace is avoided. New features: * Add model ``sf15`` for ``chess.engine.Score.wdl()``.
python-chess v1.9.0 Bugfixes: * Expand position validation to detect check conflicting with en passant square. New features: * Add ``chess.svg.board(..., fill=...)``. * Let ``chess.svg.board()`` add ASCII board as description of SVG. * Add hint when engine process dies due to illegal instruction.
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