• howemum
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    Logical and interesting puzzle :)
    January 26, 2013, 12:39 pm
  • iggie23
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    Thanks.
    February 8, 2017, 3:42 am
  • zdejo43
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    I also love math. Thanks.
    May 8, 2017, 8:15 pm
  • Alesko
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    I don't understand the upper row.
    May 17, 2018, 2:01 pm
  • Alesko
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    Just got it when I closed the window and saw the title.
    May 17, 2018, 2:02 pm
  • Damask_
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    Thank you.
    November 24, 2019, 8:44 pm