Puzzlebomb is a monthly puzzle compendium. Issue 20 of Puzzlebomb, for August 2013, can be found here: Puzzlebomb – Issue 20 – August 2013 The solutions to Issue 20 can be found here: Puzzlebomb – Issue 20 – August 2013 – Solutions Previous issues of Puzzlebomb, and their solutions, can be found here.
Integer Sequence Review Mêlée Hyper-Battle DX 2000, THE GRAND FINALE
Six contestants. Four categories. Two mathematicians. One encyclopedia full of integers. NO HOLDS BARRED.
Maths at the Fringe
There’ll be quite a few mathsy acts at the Edinburgh Fringe this year. Katie Steckles has got the details.
Enormous Sierpiński tetrahedron made of balloons

A group called Pyraloons set themselves the challenge of building the world’s biggest Sierpiński tetrahedron from balloons. And they succeeded! I’ll let the pictures speak for themselves:
26th July 2004–23rd July 2013

Yesterday, with my tongue certainly in cheek, I tweeted to the BBC Breaking News Twitter account that I had handed in my thesis, with a promise of a press release to follow. Taking the lead from my over-inflated sense of self importance, Christian Perfect posted this news to The Aperiodical News feed as ‘Breaking: Peter…
Breaking: Peter Rowlett has submitted his doctoral thesis

Peter Rowlett, editor-at-large of this site, has submitted his PhD thesis. More news as it arrives.
Integer sequence reviews on Numberphile (or vice versa)
There’s no new integer sequence review this week, because David and I are taking a break before the Grand Finale Ultimate Showdown of Dreams next week. To tide you over, top chap Brady Haran has recorded a Numberphile video with Tony Padilla explaining each of the six sequences in the final in his Enthusiastic Maths…