Crossnumbers Quarterly
Crossnumbers Quarterly
Crossnumbers Quarterly
Crossnumbers Quarterly

Welcome to Crossnumbers Quarterly

A puzzle world where digits and numbers rule as opposed to letters and words.

The puzzles are of the type seen in The Listener Crossword and The Magpie.

CQ31 was emailed to subscribers on 1st Jul 2024. 

The Listener Dinner is in Lincoln this year. To celebrate the occasion there is a prize puzzle below. If you wish you can make a donation to Comic Relief or an MND Charity. Thank you.

Up by Oyler
Up by Oyler.pdf
Adobe Acrobat document [114.5 KB]
Puzzle solution
Up by Oyler Soln.pdf
Adobe Acrobat document [97.4 KB]

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. They can be used as practice for the Ritangle competition. You can download the puzzles using the link below.

Zag's 3x5 puzzles
There's a brief introduction followed by the puzzles, hints, full solutions and lists of useful numbers.
Zag's 3x5 puzzles.pdf
Adobe Acrobat document [254.1 KB]

The 50th Listener Crossword Setters' Dinner takes place in Bristol on 4th March. To mark the occasion we have produced our take on a puzzle from 1973.  You can download it below. The competition is now closed.

50th Listener Crossword Dinner puzzle
It can be done without internet or computer use in under an hour.
Adobe Acrobat document [143.8 KB]
50th Listener Crossword Dinner solution
Full logical solution pathway
Adobe Acrobat document [190.5 KB]

The annual Magpie do at The Magpie pub in London takes place on Jan 26th. To celebrate the occasion Oyler has produced a puzzle based on chess knights moving around 3x3 blocks. You can download a copy below. The solution will appear next week.

Knighty Knight
Knighty Knight by Oyler.pdf
Adobe Acrobat document [128.4 KB]
Full logical solution pathway to Knighty Knight
Knighty Knight_Soln by Oyler.pdf
Adobe Acrobat document [88.4 KB]

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!

So whodunnit?
Kluedo and Solution.pdf
Adobe Acrobat document [432.5 KB]

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.

Lockdown Special
Four puzzles followed by solutions
Lockdown Special.pdf
Adobe Acrobat document [257.8 KB]
Open Up Special
Four puzzles followed by their solutions.
Open Up Special.pdf
Adobe Acrobat document [291.0 KB]

Our launch issue CQ0 is available below

Adobe Acrobat document [325.8 KB]

CQ Tables is available below

CQ Tables.pdf
Adobe Acrobat document [1.6 MB]

The 2022 Listener Dinner was on Saturday 26th March in Stirling. To celebrate the event, check out the new puzzle. Solution

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.

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© Alastair Cuthbertson