MathsJam meeting 23 September 2014

Portsmouth MathsJam continues to be held on the second-to-last Tuesday of each month at the King Street Tavern, with the most recent meeting held on 23 September.

It was a fairly quiet meeting with just four of us for most of the evening, though some late arrivals boosted the number to seven. Jack brought along an Only Connect-style maths quiz and we tried several puzzles from the MathsJam twitter feed and elsewhere.

Here are tweets of some of the maths puzzles we enjoyed this month:

17 September 2013

The season is changing: Summer seems to have left us abruptly and Autumn is upon us.  As the new academic year gets underway at the University of Portsmouth, we shall miss three members of our MathsJam team who have gone to pastures new.  We shall raise a glass to Andy, Colleen & Paul tonight and wish them all the very best in their new posts.

Will Perudo be the same again?

20th November means MathsJam Novemtory…

We had a great time completing our Novemtory form, Brian paced the Pub to enable a reasonable estimate of the number of ping pong balls to fill the room.  Although none seemed particularly serious when it came to ages and demographic split…

We also had important business to deal with during this MathsJam session:  finalising our choices for the Portsmouth MathsJam Christmas meal which is being held on 12.12.12.  We have moved the date a bit – but it is not the first time that Portsmouth MathsJam is out of sync with the others.  The King Street Tavern has a delicious Christmas  menu which we are looking forward to sampling.

Nick produced an excellent puzzle, which kept us happy for quite a while but unfortunately mine got wet (beer!) and so I no longer have an official record  of it.  Suffice it to say it was a series of 4 numbers and using the usual operators (only) we had to decide which number(s) 1-20 it would not be possible to make.

In view of Matt’s plans for Rubik’s cube the following day we had a bit of a go with a Rubik’s cube, Hungarian Ring and Bedlam Cube.  The Bedlam Cube remains unsolved and will be back…

There was also a MathsJam outing this week:  24th November Robin Ince appeared at The Spring in Havant.  Five MathsJammers went along and had an excellent night.

If anybody would still like to come to the Christmas meal just pop into the King St Tavern and have a chat with Sam to choose what you would like to eat and pay a small deposit.

The menu may be viewed through the link to King St Tavern.

23 October 2012: The Perudo Jedi…


Perudo, sometimes known as Liar’s Dice, was the game of choice at Portsmouth MathsJam last night.  This is one of the Group’s favorites and given that we are in week 5 of busy term, the much needed “boost” hit the spot.

Perudo is also known as “Liar’s Dice”.  The aim is to predict the number of dice (1s, 2s, 3s etc) that will be thrown out of the 25 initially available.  There are rules governing the way in which the predictions are made which add to the challenge.  Strategy is everything as to a certain extent is the seating plan.  From last night’s match I can reveal that the Perudo Jedi rose again – only to lose the Force in the second to last round but I am in no doubt he will return.

There was discussion of forthcoming meetings:  November Portsmouth MathsJam meeting will be on 20 November as usual  BUT the December meeting will be on WEDNESDAY 12 December and we plan to go for a festive supper.


Welcome back…

The Summer holidays are over, schools and colleges have already started the new academic year.  The University of Portsmouth has welcomed students back this week.  Portsmouth MathsJam kept going over the Summer with meetings in both July and August, thanks are due to regular MathsJammer Nick for making sure that the long table at Kings Street Tavern was occupied.

Next meeting 18th September 2012 from 7.30 pm onwards.  Do come along and join us, why not bring a puzzle along to share?

17th April 2012

Portsmouth MathsJammers gathered  at the new venue, King Street Tavern  We were made to feel very welcome and some of us partook of the excellent food available.  A super, long table had been reserved for us which we soon filled – with apologies to the chap enjoying quiet pint and his emails at the end of the table.  We were joined by five new MathsJammers, taking our number to 12 this month and we even managed a few tweets as well.

To start us off, we filled in a few more of Mel’s2012 puzzle – trying to create the numbers 1 – 100 using 2,0,1 and 2 using just the operators +, -, / and x. We extended this by including factorials, trig and then Ed took us into the realms of tetration.  This really got the mathematical juices flowing and other puzzles were shared around the table, such as:

“There are 100 people waiting to get on a plane.  The first person in the queue has lost his boarding card and may or may not sit in the correctly allocated seat.  What is the probability that the last person to get on the plane sits in the right seat?”

There were several other corkers that we all enjoyed.  The informal puzzle solving format seems to appeal to most, although we may branch out by asking one MathsJammer to demonstrate a particularly elegant solution to a problem that we can all admire.

A good time was had by all, fuelled by good beer, company, food and the nibbles that KST supplied to keep us going.

Looking forward to the next meeting: 22 May 7.30 – 9.30pm, KST.


Welcome to the home on the web of Portsmouth MathsJam.  Our group has just had our first meeting.  We are open to ideas as to what people would like to do but we shall be continuing with some puzzles that were started last time.  Do come along and share what ever maths hits your “geek-spot”!

The next meeting will be at 7.30 pm on Tuesday, 17 April 2012 at The King Street Tavern, Southsea.  See you there!