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9th of April, 2018 Some retro problems will be published by the end of this week, I apologize to the authors for the delay in publication.
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Animated diagrams use Py2Web by Dmitri Turevski and WinChloe’s graphics. |
All previously published problems you can find in the subsections of Original Problems menu on the top. The next fairy tournament starts after a break, on the 1st of July (the judge: Kjell Widlert). The judge of Retro & PG problems 2017-2018: Dirk Borst.