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RE: A Lesson Plan using Shikaku Puzzles
love this idea! I'm a big fan of sudoku as well. a question: do all the numbers have to be in a neat shape (column/row or square) or can you get some of those funky tetris shapes going on and still be valid, so long as they are connected?
I think that they're supposed to be columns, rows or squares. I was pretty strict on it because I was offering prises for completing them, and didn't want to make it too easy, but you could probably be more flexible. I found that if the 'square numbers' were completed first, then mostly columns or rows fit the rest.