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Manual Reference Pages  -  QQWING (1)


qqwing - A tool for generating and solving Sudoku puzzles



qqwing --generate [OPTIONS...]
qqwing --solve [OPTIONS...]


qqwing is a Sudoku puzzle generator and solver. It offers the following features:
o Fast. It can solve 1000 puzzles in 1 second and generate 1000 puzzles in 25 seconds.
o Uses logic. Uses as many solve techniques as possible when solving puzzles rather than guessing.
o Rates puzzles. Most generators don’t give an indication of the difficulty of a Sudoku puzzle. QQwing does.
o Can print solve instructions. Tells steps that need to be taken to solve any puzzle.
o Customizable output style, including a CSV style that is easy to import into a database.


--generate <num>
  Generate new puzzles
--solve Solve all the puzzles from standard input
  Generate only simple, easy, intermediate, expert, or any
--symmetry <sym>
  Symmetry: none, rotate90, rotate180, mirror, flip, or random
  Print the puzzle (default when generating)
  Do not print the puzzle (default when solving)
  Print the solution (default when solving)
  Do not print the solution (default when generating)
--stats Print statistics about moves used to solve the puzzle
  Do not print statistics (default)
--timer Print time to generate or solve each puzzle
  Do not print solve or generation times (default)
  Count the number of solutions to puzzles
  Do not count the number of solutions (default)
  Print trial and error used when solving
  Do not print trial and error to solve (default)
  Print the steps (at least 81) needed to solve the puzzle
  Do not print steps to solve (default)
  Print trial and error to solve as it happens
  Do not print trial and error to solve as it happens
  Print puzzles on one line of 81 characters
  Print puzzles on 9 lines of 9 characters
  Print puzzles in human readable form (default)
--csv Output CSV format with one line puzzles
-h, --help Display help message
--about Display author and license information
  Display version number


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