An Analysis of Unwinnable Chess Positions

• ChessUnwinnableAnalyzer

  1 0 10.0 Python

  Categorizing unwinnable chess positions

Source code may be found at my Github. The repository also includes all the positions broken down by ply / outcome as they were in this post, if you're interested in seeing additional positions.

• python-chess

  27 2,290 8.0 Python

  A chess library for Python, with move generation and validation, PGN parsing and writing, Polyglot opening book reading, Gaviota tablebase probing, Syzygy tablebase probing, and UCI/XBoard engine communication

python-chess

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• D3-Chess

  11 48 5.0 C++

  Chess Unwinnability Analyzer is an implementation of a decision procedure for checking whether there exists a sequence of legal moves that allows a certain player to checkmate their opponent in a given chess position.

Of course, somebody eventually made a project to find all of these games and created the Chess Unwinnability Analyzer (known as CHA):

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