• biker_bob
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    Some guessing at the end with a nice result.
    November 28, 2012, 8:42 pm
  • howemum
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    Mostly logical...nice picture :)
    November 29, 2012, 2:19 am
  • Laurelin323
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    Excellant - thanks.
    January 30, 2016, 1:15 pm
  • Damask_
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    Thank you.
    November 12, 2019, 4:47 pm
  • littlebitocd
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    Assume symmetry, then 4 ambiguous pixels.
    June 5, 2020, 12:47 am