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

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 ...

The seven puzzles reveal where real-life spies are spending their Christmases. Well, allegedly (Picture: GCHQ) The above image isn’t the world’s most elaborate Christmas card – it’s ...

Killer Sudoku must be treated with respect. Dont leave it alone for too long and always lock it up before the moon comes out…. A puzzle magazine with the hardest Sudoku number puzzles available. Buy a ...

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