Dear PME/GMC members,
Two good sources of information for a Math of Sudoku talk are:

• the paper The Mathematics of Sudoku by Tom Davis.
• the website Mathematics of Sudoku from Wikipedia

1. Sudoku
   1. Math and Sudoku
      • Websites
        • Mathematics of Sudoku from Wikipedia
      • Papers and Articles
        • The Mathematics of Sudoku by Tom Davis.
        • Enumerating Possible Sudoku Grids by Bertram Felgenhauer and Frazer Jarvis
        • Sudoku Squares and Chromatic Polynomials by Agnes M. Herzberg and M. Ram Murty
   2. Sudoku Strategies/Techniques
      • SadMan
      • Krazy Dad
   3. Sources of Sudoku Puzzles
      • Krazy Dad
      • Web Sudoku
      • Daily Sudoku
      • Sudoku Puzzles
   4. General Sudoku Information
      • Sudoku from Wikipedia
      • Sudoku Online : Home of the Sudokulist
      • Simple Sudoku - freeware puzzle maker and solver
   5. Blank Grids
      • 16 pages of: 1 per page / without candidates
      • 1 per page / with candidates
      • 1 per page / with candidates
      • 1 per page / without candidates
      • 1 or 4 grids per page / with or without candidates
      • 6 grids per page / without candidates
2. Other Stuff
   • Mathematical Circles Topics