Tiffany Antopolski
tiffany.antopolski@gmail.com 2011

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# Statistics

To view the statistics about the current puzzle, click GamePuzzle Statistics.

Very hard puzzle statistics box example

GNOME Sudoku ranks puzzles based on the number of cells that can be rapidly filled.

The puzzle statistics box shows:

the overall difficulty

the number of cells which can be filled by elimination, starting from the blank grid (i.e. only a 2 can go in this box, so it must be a 2)

the number of cells that can be filled by the process of filling, starting from the blank grid (i.e. only one cell in this row can be a 2, so it must be a 2)

the number of times in solving the puzzle that the program used the trial-and-error algorithm to solve the puzzle

All sudoku puzzles can be solved without ever having to guess. When the statistics box says that Sudoku used trial-and-error X number of times, it does not mean that a human would have to use trial-and-error to solve the puzzle.