Quick crossword #93: Dye mixture used in testing pH (6)
7 October 2021
Challenge your brain by solving New Scientist's weekly crosswords on your mobile, tablet or desktop
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Puzzle #134: Can you work out which keyboard to hack?
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Can you solve this week’s fiendish puzzle No time to try? Plus, the answer to puzzle #133
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There are ways of keeping your garden growing that don't involve wasting huge quantities of water. Clare Wilson explains how
