Puzzlebomb is a monthly puzzle compendium. Issue 22 of Puzzlebomb, for October 2013, can be found here: Puzzlebomb – Issue 22 – October 2013 The solutions to Issue 22 can be found here: Puzzlebomb – Issue 22 – October 2013 – Solutions Previous issues of Puzzlebomb, and their solutions, can be found here.
Integer sequence puzzle in More or Less
More or Less, the BBC’s maths and statistics radio show, has been sneakily doing a puzzle on us for the last few weeks. The episodes in the series so far have each been ‘brought to you’, Sesame Street-style, by a different number. But what will the final episode be? Can you crack the integer code…
An enneahedron for Herschel

The Herschel graph has some pretty cool properties. Christian Perfect constructed the associated polyhedron, and it too has some cool properties!
MathsJam Conference 2013: early-bird discount has ended
Unlike good news websites, we’re reporting this after it’s useful: if you wanted to book for this year’s MathsJam annual conference at the discounted 10% off early-bird rate, you’re now NOT able to do so. However, there are still a few places left, although not many, so if you do want to join in with…
All Squared, Number 7: Card Magic (Colm Mulcahy part 1)
Colm Mulcahy is an original Aperiodical contributor (Aperiodicontributor?) and friend of the site. He’s spent the last year and a bit writing his new book, Mathematical Card Magic: Fifty-Two New Effects. It came out a few weeks ago, so we thought it was a good opportunity to talk to him and find out just what’s so…
Rubik’s Cube in Minecraft
The last time we posted about Minecraft, someone had made a scientific and graphing calculator. But now someone’s made something actually useful: a Rubik’s cube! Mastercrafter SethBling uploaded this video showing his fully-working Rubik’s cube, created entirely from standard Minecraft blocks: [youtube url=http://www.youtube.com/watch?v=wUEUuurc9u4] Download the world: SethBling’s RubiksCube via Jacob Aron on Twitter
Visual Insight by John Baez

John Baez, the very first maths blogger, has started a new blog called Visual Insight. It’s hosted by the American Mathematical Society and is “a place to share striking images that help explain advanced topics in mathematics.” So that’ll be nice. Go there: Visual Insight – Mathematics Made Visible