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Comments in green were written by me. Comments in blue were not written by me.
Thanks for the advert calendar this year.

By the way, in the "Hardest and easiest puzzles" section, 4 out of the 5 links to the puzzles are to the 2020 puzzles instead of the 2021 puzzles
Alex
on /blog/93
×2   ×2   ×2         
@Alex: Thanks, I've fixed those links
Matthew
on /blog/93
×2   ×2   ×2   ×2   ×2   

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