Brain Teasers
- 105
- DKM Sudoku Online
- Play online puzzles at one of four difficulty levels. Also includes a solver program and hints. Software for Pocket PC and Windows also available.
- 106
- Erational Sudoku Helper
- Flash application to assist in solving puzzles by using basic scanning techniques. Download and source code available.
- 110
- Sudoku Sensei
- Open source application which describes the logic used to solve a grid, rather than using a simple brute force solution. Includes source code and samples. [Windows 95/98/NT/2000/XP, Linux]
- 112
- SudokuME
- Open source Sudoku game for any Java enabled phone. Includes downloads, a game manual and user forums.
- 113
- 10 Hardest Logic/Number Puzzles
- A list of the hardest known puzzles for Sudoku and several Sudoku variants.
- 116
- Mathematical Recreations
- Custom Word Doku puzzles devised by Steve Schaefer. Features an entire sentence embedded into the puzzle.