cropped-Logo-2015-03-03.png Published 4 March 2015 at 1050 × 293 in cropped-Logo-2015-03-03.png ← Previous Next → http://chalkdustmagazine.com/wp-content/uploads/2015/03/cropped-Logo-2015-03-03.png More from ChalkdustRead Issue 20 now!Spirographs, complex triangles and a lot of ants feature in our AW24 issue! Plus all your favourite puzzles & columns.Cryptic crossword, Issue 20Can you solve it?A mathematician’s guide to EdinburghStranded in Scotland's capital? This guide will keep you busyDear Dirichlet, Issue 20Cricket, coursework and karaoke are among the problems solved in this issue's Dear Dirichlet agony aunt columnPrize crossnumber, Issue 20Can you solve it?Top ten: top tensThe undisputed top ten top tens this season