The chessboard has been the source of many ingenious puzzles that involve spatial reasoning and insight thinking. The seven ...

Adrian Dudek's PhD is supported by an Australian Postgraduate Award and an ANU Supplementary Scholarship. The two activities have plenty in common. In either, one’s success relies strongly on the ...

Christian McCaffrey’s many talents extend well beyond the football field. Ezra Shaw / Getty Images Share Skate Take Eat There’s a rule inside the San Francisco 49ers locker room … Teak Stake Seat That ...

Take on Alexey Suetin in a recreation of a Goglidze Memorial Tournament game in Tbilisi, 1970. Solve for the best series of moves. By Daniel Naroditsky Perfect! mistakes made. Come back tomorrow for ...