Tricks to become better at Fortress Sudokus

Fortress sudokus can be hard to tackle. This video explains some of the basis things that may help your solve become comparatively easier.Do check out the vi

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Improve Your Sudoku: How To Solve Harder Puzzles

Any Sudoku experts in here? I have been stuck here for an hour and have no idea how to proceed. I tried learning about Empty Rectangle technique but I couldn't get it

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How to Solve a Fortress Sudoku fast.

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