Welcome to Crossnumbers Quarterly
A puzzle world where digits and numbers rule as opposed to letters and words.
CQ13 was emailed to all registered subscribers on 29th Dec 2019.
New for 2020
The Wizards of OZ have set a four part whodunnit mystery puzzle for 2020. There is a prize of £100 for the first correct solution drawn from the correct entries. The only catch is that you must be a subscriber in order to enter!
CQ12.Please check the CQ errata tab for update
CQ12 was emailed to all subscribers on Friday 27th September
CQ11 was emailed to all subscribers on Thursday 27th June 2019
This year's Listener Dinner is in York on the the 2nd of March which is the 50th anniversary of the maiden flight of Concorde. CQ have set a couple of puzzles for the dinner and they appear in the 'puzzles' section of this site.
Check out the new puzzle by Zag which can be found on the puzzles tab. CQ9 will be emailed to all who have subscribed before the new year.
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.