Revision History

0.41 Sat Apr 15 12:00:00 2006 EDT

• Enhanced solver and added tests for previously unsolvable puzzles:
  • 2 examples by Jean-Pierre Vidal
  • 6x6 puzzles, example from Brian Helterline
  • 16x16 puzzle from sudokusolver.com
  • 15x15 puzzle from sudoku.com's sud.exe
  • Several "evil" puzzles from WebSudoku
• Allows \%config to be passed in, thanks to Brian Helterline
• Added board validation
• Bugs fixed:

  get or set square

  Worked for squares but not rectangles.

  1. Had $x and $y reversed in accessing $self->{board}
  2. Was using $v_squares instead of $h_squares

  array to text

  3. Wasn't using a copy of $self->{board}, so printing

  a solution for debugging purposes screwed up later processing.

  retry

  4. Wasn't correctly copying and restoring $self->{board},

  so it wasn't able to brute force the solution to some hard problems.

0.10 Wed Jan 31 00:00:00 2006 EST

• First Public Release