SourGumdrop 2.0

A Sudoku playing program that can help players learn new techniques for solving puzzles.
  2 Screenshots
SourGumdrop is a fun Sudoku game with powerful and flexible hint methods.

Beginners can benefit from its quick and simple user interface and its range of helpful options. Experienced solvers can use its automatic filtering techniques to allow themselves time to concentrate on the more interesting and challenging components of puzzles. Beginners and experienced players alike can take advantage of the program's range of hint options. As the source code of the program is available programmers can change the program in any way they please.

The Overview page gives a good idea of some of the program's main features. Of course the only way to really know if you like a program is to try it...

To underpin the program's hint methods this website aims to provide clear explanations of the patterns used to solve puzzles. So far, thirteen common patterns are described and explained.

Main features:

  • An easily-used puzzle solving interface
  • Hints for hidden singles, hidden pairs, hidden triples, locked candidates, naked pairs, naked triples, naked quads, xwing, swordfish, jellyfish
  • Built-in puzzles
  • Difficulty ratings
  • Puzzle reading
  • Puzzle saving
  • Undo mechanism
  • Error checking
  • Alternative grid sizes available
  • Source code included

last updated on:
March 18th, 2011, 12:40 GMT
developed by:
Rod Gerstad
license type:
GPL (GNU General Public License) 
ROOT \ Games \ Puzzle
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