More from Chalkdust
Notched edge cards
Joe Celko makes a database from card and knitting needles
What’s hot and what’s not, Issue 18
Fashion is fleeting, Chalkdust regulars are not.
Issue 11
Space-filling curves, cheating at cards and automated joke generation feature in our spring 2020 edition. Plus all your favourite puzzles & columns.
Christmas cracker joke I
Behind today's door... a good joke!
How to make: a hexaflexagon
Make an amazing three faced hexagon
Dear Dirichlet Christmas special
Agony uncle Professor Dirichlet answers your personal problems this Christmastime.