Download the August 2026 puzzles from Chemistry World

There are four prize puzzles on this page: cryptic crossword; quick crossword; wordoku; and coronene. For each puzzle, a winner will be selected from all the correct entries received and awarded a £25 UK book voucher.

You can enter any or all of the prize draws, but each entrant is only eligible to win one of the individual puzzle prizes each month.

Please send a photograph or scan of your completed puzzles to chemistryworld@rsc.org by 21 August 2026.1

Please note that the chemical formula for 1 Across, 23 Down on the Quick crossword should be (CH3)2O, not (CH3CH2)2OH. Equally, the philosopher for 16 Down on the Quick crossword has been incorrectly spelled. Sorry for any inconvenience caused.

Win with GPE Scientific

Well done to everyone who found Shlenk lines hidden throughout the January – June cryptic crosswords, and congratulations to the below, who each receive a £50 book token!

  • Michael Howlett

  • Andrzej Zieleniewski

  • Nigel Cowley

  • Roslyn Shapland

  • Jim Jamieson

  • John Wilkins

  • Sue Howarth

  • Brian Taylor

  • Rachel Sirotinina

  • Mark Nichols

Downloads

References

1 Participants are advised that any personal information supplied will be processed in connection with this competition only and in accordance with our privacy policy.

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