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Depending on the puzzle there is “actual effort”, a lot of these puzzles are not generated.

If you’re experienced with solving you can also generally distinguish generated from constructed puzzles.

[Edit: Are you looking specifically for battleship puzzles? or just variant sudoku?]




It was the exact same puzzle that's in the OP. With the scale of available puzzles they had for sale, I'm fairly confident it was automated (they also weren't noticably different from the generated puzzles I played before).




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