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Is there a smarter strategy?Apologies if Im repeating something thats already known (Im fairly new to sudoku), but theres an additional way to extend the principle of unique rectangles. Unfortunately, I dont have an example handy, but consider the following: In column 1, we have a 1-2 pair in boxes A1 and D1. In column 2, we have a 1-2 pair in boxes A2 and E2.Money - Financial & Business News, Stocks | Daily Mail OnlineLab 5: Solving Sudoku - https://artofcomputing.cecs.anu Slide 1Dec 01, 2016Solving sudoku puzzles like a mathematician: by transforming the problem. Instead of a square grid of nine cells by nine cells containing the numbers 1 to 9, a sudoku puzzle can be construed as a cube containing only the values 0 and 1. On each of the 81 cells of the square grid stands a nine-story tower, each floor representing one of the Chapter 9. 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