Computer science seemingly rides a curve of unstoppable progress. Mere decades took us from vacuum tubes to microchips, ...

Many readers like to print out the puzzles from our online newspaper and tackle them with pen or pencil. But immensely ...

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The jungles of Siam are hiding all sorts of secrets, and scattered across it is a series of puzzles that might just be the hardest in the entire game. When you first find the hidden pyramid as par ...

medium and hard) and you claim the Herald hat-trick. Want more quizzes? Test your knowledge in the Herald’s Morning quiz and Afternoon quiz or take on the latest Sudoku or crosswords.