Heard about on the Get Smart with Smart Boards podcast http://smartboards.typepad.com/getsmart/

I really like that you do it with symbols and take it down to a 4x4 grid.

Quotes:

Jigsaw Sudoku - Free Online Sudoku Game

  • sudoku跟填字遊戲的結合
  • Colorful Flash-based 4x4, 6x6 and 9x9 Sudoku games. Includes easy, medium and hard levels. Also suitable for kids and Sudoku beginners!
  • Heard about on the Get Smart with Smart Boards podcast http://smartboards.typepad.com/getsmart/
  • Heard about on the Get Smart with Smart Boards podcast http://smartboards.typepad.com/getsmart/
  • Heard about on the Get Smart with Smart Boards podcast http://smartboards.typepad.com/getsmart/