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
Nobel prize crossword 2025
Test your Nobel nous with this chemistry-themed crossword
Cryptic chemistry crossword #110
‘Manage to oddly ignore arguing (3)’ by distracting yourself with this cryptic crossword
Cryptic chemistry crossword #109
‘Right away, ensure to proceed (5)’ to complete this cryptic chemistry crossword
Cryptic chemistry crossword #108
’Maybe introduce addition of electrons (9)’ while completing this cryptic chemistry crossword
Cryptic chemistry crossword #107
This chemistry puzzle ‘Regularly reveals fish (3)’
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.
Quick chemistry crossword #095
From niobium to Nobelists, meet chemists and revisit the lab where the pH scale was born in this quick chemistry crossword.
Chemistry wordoku #118
Find the Scottish chemist in the solution to this sudoku-style puzzle
Chemistry wordoku #117
A sudoku-style logic puzzle with a chemistry twist
Chemistry wordoku #116
The puzzle that requires both logic and a sprinkling of chemistry knowledge