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@Aisha: Hm, I used exactly the same method for both of these days. I'm not sure if it lends itself to a nice clean formula, but it might! I'll share my approach after the contest is over!
Seth Cohen
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 2026 

May 2026

World Cup stickers 2026

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A new puzzle every day
Mixing Wordle with other games

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 2025 

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Christmas card 2025

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The partridge puzzle

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A nonogram alphabet

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 2024 

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A regular expression Christmas puzzle
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Zines, pt. 2

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