To Wear the Sudoku Crown, One Must Solve Any Number of Puzzles

Siobhan Roberts and Chloë Ellingson Science Sudoku (Puzzle), Crossword Puzzles, Mathematics, your-feed-science Also helpful: pens, pencils, earplugs, plushies, a water bottle, calming herbal oil and the occasional “wild bifurcation” (a.k.a. a wild guess). https://ift.tt/xkz2QUm