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Revision history for Games-Sudoku-Solver

0.0.1  May  8 16:24:32 2007
       Original version, derived from an earlier version.

1.0.0  June 5 2007
       Initial release.

1.1.0  December 12 2007
       Bugfix: sudoku_check reports wrong submatrix.
       Solution can be restricted to have unique digits on one or both diagonals.