The power of Sudoku

I spent time cracking my head, trying to solve a Sudoku puzzel. Haizzz... According to Jinshan, he can solve some within 15 mins...
If you think you are up to the challenge, try your luck by getting a Sudoku book from the bookstore.
I'm thinking of how I should teach children Maths using Sudoku.
1 comment:
Hahaha...
Trying to out a big hat on mi...
Tat all depends on each Sudoku's difficulty... Easy one of coz can solve faster. Harder ones, i raise my white flag.
Heeheee...
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