Lexicon
Deduce the hidden word.
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Five colourful brain games — words, numbers, logic. Free to play, no signup, five minutes a day.
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Target
Hit the number, exactly.
Sudoku
Classic logic. Refined interface.
Categories
Sort sixteen words into four hidden groups.
Domino Regions
Place dominoes to satisfy every region.
Wordle
Five letters. Six guesses.
From the journal
Ideas worth thinking about.
Strategy, science, and the craft of good puzzles.
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