In addition, inequality constraints must be met as the grid is being filled out. So for example, if two adjacent squares have a greater than symbol ">", then the digit to the left of the symbol must be greater than the digit right of the symbol. This also applies to digits above and below the inequality constraint. At the start of the game you will have an empty grid with maybe a few clues.
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Here is another link for futoshiki solving strategies: https://www.atksolutions.com/articles/futoshikistrategies.html
The variations between easy, medium and hard levels offer significantly a more challenging experience.
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