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nice challenge, but first i had the same problems like JanB...it was to late to solve

very nice challenge! thx

nice challenge... easy to solve - but hard to answer, cause of the missing blank -.-

damn, first i open the file with a hex-editor - saw the link at the end, but there was nothing what help...
then i try to find the solution in the squares...nothing
next day - solved by opening with hex-edit again