• kika_1
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    Very good and absolutely logical :-)
    November 6, 2014, 11:06 pm
  • coxcox
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    Very very difficult....... and amazing :-)
    November 14, 2014, 6:23 pm
  • Nipper 77
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    Great puzzle.
    October 25, 2015, 1:06 pm
  • mystifier
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    Don't really understand the difficulty claim; I thought that it was very logical and straight forwards. Wouldn't have known what it was if not for the title but enjoyable.
    January 1, 2017, 2:49 pm