Welcome to Crossnumbers Quarterly
A puzzle world where digits and numbers rule as opposed to letters and words.
Please check errata page for updates
CQ20 was emailed to all subscribers on Monday 27th Sept.
Check out the puzzles tab for new puzzles
The launch issue is free and is still available to anyone interested.
If you are interested in receiving a free copy then please contact us. Please note that there is only an electronic version.
Contact us at
If you have a puzzle that you wish to have considered for publication then please send it to either Oyler or Zag at our respective email addresses. We require a file that contains the puzzle and a separate file that contains the solution along with a possible solution pathway. We will pay £25 for each puzzle published.
Challenging Crossnumber Puzzles
Over sixty puzzles to entertain, frustrate and exercise the brain.
Copyright. All the puzzles published are the copyright of the setters and may not be copied or redistributed in any form.