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Crossnumber: Zeroed Out

· By cheeky · Published 2021-09-19T18:04:31.001Z

Constructor's Note
Grab your calculators! Fill in every space in the grid with a digit from 1-9. This time, however, every entry MUST contain the digit 0 once and only once, besides for 11A and 10D, which both contain no zero. Digits are allowed to repeat in entries.
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  • Mike D 🤓3:35 · 2021-09-19T21:04:36.893Z
    These are fun!
    • JeffPrug 🤓8:02 · 2021-09-20T00:34:02.794Z
      Phew, was stuck for a while but finally got it! I wasn't sure if the same entry was allowed multiple times.
      • Sommersmith 7:53 · 2021-09-20T15:53:03.753Z
        Love these puzzles! For this one, I ended up with a solution different from the official solution, but which, as far as I can tell, is valid. The different entries I had were: 3A: 16; 5A: 61909; 8A: 02; 1D: 11101; 2D: 06; 5D: 60 (reversed version of 2D); 6D: 12
        • Mike D 🤓3:35 · 2021-09-20T15:58:37.392Z
          I don’t think that quite works because every entry (except the two noted) must include exactly one 0
          • Sommersmith 7:53 · 2021-09-20T17:09:05.832Z
            You're absolutely right of course - that's the rule I forgot and of course it's right there in the instructions. And I thought I was so clever! :P
        • Jon 7:10 · 2021-09-20T17:06:57.090Z
          Wow!
          • Kent D 🤓13:10 · 2021-09-20T19:20:08.871Z
            Ahh, "every entry MUST contain the digit 0 once and only once..." I needed that written on the back of my hand, then it wouldn't have taken me 13 minutes to solve the puzzle! That was fun, though!
            • Caroline 9:50 · 2021-09-23T19:05:32.745Z
              Can someone explain how 5D is the reverse of 1A, 2D, and 4D?
              • cheeky constructor · 2021-09-23T23:58:00.305Z
                or, not and
              • Julia 5:57 · 2021-10-15T03:44:46.369Z
                This was cool! Reading the "or" as meaning "and" tripped me up, but I got there.
                1A
                No clue is given for this number
                1
                2
                3
                4
                5
                6
                7
                8
                9
                10
                11
                Across
                1. 1A
                  No clue is given for this number
                2. 3A
                  A perfect square
                3. 4A
                  A number that is neither prime nor composite
                4. 5A
                  Each neighboring number in the entry differs by at least 5
                5. 8A
                  A factor of 28
                6. 9A
                  The first digit is consecutive with the last digit
                7. 11A
                  Both digits are the same (does not contain zero)
                Down
                1. 1D
                  A set of zeros and ones (binary)
                2. 2D
                  An even number
                3. 4D
                  The second digit minus the first digit equals nine
                4. 5D
                  A reversed version of either 1A, 2D, or 4D
                5. 6D
                  A multiple of 2D
                6. 7D
                  The first and last digits are odd and are both the same digit
                7. 10D
                  A prime number (does not contain zero)
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