How do Sudoku creators (the human kind) know that they’ve given enough clues to make a puzzle solvable while still making sure there are no errors?
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Sorry if I’m hijacking the thread with a ELI3-question:
Am I stupid if I can solve a sudoku? I’ve thought my whole life I’m way below in intelligence but I have smart friends who can’t seem to solve one puzzle. I always solve them granted the hard ones takes me hours some time going back to it and pause to think etc. Just want to know if it has to do with mental capacity to solve or not, serious question…
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