Chemistry puzzles
Science and chemistry-themed puzzles, including wordoku, quick and cryptic crosswords. Test your chemistry knowledge and puzzle-solving skills
Our puzzles are sponsored by Shimadzu, a global leader in precision analytical instrumentation.
Shimadzu celebrate their 150th anniversary in 2025
Our top puzzle
Quick chemistry crossword #100 - Shimadzu special
Search for solutions in this special Shimadzu-themed quick chemistry crossword
Cryptic chemistry crossword #116
We hope that doing our cryptic chemistry crosswords isn’t ’Pure torture now and again (4)’
Cryptic chemistry crossword #115
Can you find the ’Odd extra letter (3)’ in this cryptic chemistry crossword?
Cryptic chemistry crossword #114
’Some find I got colour (6)’, but will you find the solutions to this cryptic chemistry crossword?
Cryptic chemistry crossword #113
‘Finished some hoovering (4)’? Then you’ll have time for this cryptic chemistry crossword
Nobel prize crossword 2025
Test your Nobel nous with this chemistry-themed crossword
Quick chemistry crossword #099 - Lab Innovations 2025 special
Look ahead to this year’s Lab Innovations event with a bumper quick crossword.
Quick chemistry crossword #098
From a mission to Saturn’s moons to a marine mollusc, this quick chemistry crossword will test your knowledge
Quick chemistry crossword #097
This quick chemistry crossword condenses clouds of ions, a dash of Queen Anne’s lace, and a liqueur-laced current into one electrifying challenge.
Quick chemistry crossword #096
This quick chemistry crossword covers codebreaking, chemistry, and ecclesiastical architecture.
Chemistry wordoku #124
You may need to go out of your depth to find the seawater-studying geochemist hidden in this sudoku-inspired puzzle
Chemistry wordoku #123
Seek the Swedish chemist and mineralogist in this sudoku-style puzzle
Chemistry wordoku #122
Solving this sudoku-inspired puzzle should be elementary!