More Su Doku... As promised, I've added more difficult 3x2 Sudoku puzzles to the 8 to 10 years section. You can find

• 3x2 puzzle 4 (medium)
• 3x2 puzzle 5 (hard)
• 3x2 puzzle 6 (hard)

I've also added a 3x3 version of the game (the one you normally see) to 10+ years. Puzzles are:

• 3x3 puzzle 1 (easy)
• 3x3 puzzle 2 (easy)
• 3x3 puzzle 3 (medium)
• 3x3 puzzle 4 (medium)
• 3x3 puzzle 5 (hard)
• 3x3 puzzle 6 (hard)

Again, there are also printable (PDF) versions of all these.