Welcome to Crossnumbers Quarterly
A puzzle world where digits and numbers rule as opposed to letters and words.
CQ23 was emailed to subscribers on 28th Jun.
In 2020 we published a four part murder mystery. Just click on the link below.. Don't worry that it says solutions the puzzles are there too!
During the pandemic in 2020 we published a couple of extra issues to keep subscribers occupied. These issues can now be downloaded using the links below.
Zag has compiled fifteen puzzles that all use a 3x5 grid. These puzzles will be referred to in an article that will appear in Mathematics Today which is an IMA publication. You can download the puzzles using the link below.
Our launch issue CQ0 is available below
CQ Tables is available below
CQ22 was emailed to all subscribers on Tuesday 29th March
Please check errata page for updates
New puzzle Wow added for The Magpie Party 2022 in the Puzzles section. Solution in the solution section!
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.
Copyright. All the puzzles published are the copyright of the setters and may not be copied or redistributed in any form.