Slightly improved speed by moving all "working functions" to use arrays rather than vectors.

The user-facing functions should still return the same values, so this hopefully shouldn't break anything.

PyPi release with incremented version number

V2.1.2

increment version number

Bug Fix

Fixes a bug that caused the get_unsolved_puzz method to return the solved puzzle instead.

This does not affect the speedtest method because it directly indexes the unsolved/solved puzzle vectors.

Minor Fixes

Full Changelog: V2.0...V2.1.0

Critical Stability Fix

Primarily fixes a bug that caused the solver to hang indefinitely when given an illegal puzzle.

Full Changelog: V1.6...V2.0

Add project links to PyPi

Full Changelog: V1.5...V1.6

Add source code uploading to PyPI

Full Changelog: V1.4...V1.5

Add python 3.13 support to pre-built wheels

Full Changelog: V1.3...V1.4