Chemistry puzzles
Science and chemistry-themed puzzles, including wordoku, quick and cryptic crosswords. Test your chemistry knowledge and puzzle-solving skills
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Nobel prize quick crossword 2026
From laureates to lysosomes: can you crack our Nobel crossword?
Our latest puzzle pages
Download the latest puzzle pages, complete with all of our puzzles and the previous month’s winners, here. We publish puzzle pages even when there isn’t a print magazine, so remember to check back each month!
October 2026 puzzles
Download the October 2026 puzzles from Chemistry World
Cryptic chemistry crossword #153
Sauces, salts, queens and kings feature in this week’s cryptic chemistry crossword
Cryptic chemistry crossword #152
Mythical creatures, termites and immature British polymaths feature in this week’s cryptic chemistry crossword
Cryptic chemistry crossword #151
You may find the clues to this cryptic chemistry crossword ’very dry but right blend (4)’
Cryptic chemistry crossword #150
Hilf mir bei diesem Kreuzworträtsel! ‘Sounds like a plea from the German chemist (5)’
Chemistry wordoku #162
Meet the chemist working at the intersection of materials and catalysis in the solution to this sudoku-inspired puzzle
Chemistry wordoku #161
Discover the reaction hidden in the solution to this sudoku-inspired puzzle
Chemistry wordoku #160
This chemistry wordoku takes a look back at a chemical once sprayed on a kitchen staple
Quick chemistry crossword #109
Consider yourself a person learned in the secrets of alchemy when tackling this quick chemistry crossword
Quick chemistry crossword #108
Understanding Einstein’s most famous equation will guide you in this quick chemistry crossword
Quick chemistry crossword #107
Understanding Einstein’s most famous equation will guide you in this quick chemistry crossword
Quick chemistry crossword #105
Thinking like the Italian renaissance polymath, astronomer, artist and physicist will help with this quick chemistry crossword
Quick chemistry crossword #106
This quick chemistry crossword will take you from Scotland to Dorset