Gideon Greenspan Published Applications :

Jigsawdoku is an easy and colorful way to play Sudoku, the world's favorite logic puzzle. Choose from numbers, letters or symbols to start filling in your puzzle.

Jigsawdoku includes six...
Billions of free Sudoku puzzles to play on your iPad.

All the features of Web Sudoku online, plus:
Play offline anytime, anywhere...
and never lose your progress on a...