Tag Archives: Code breaking

The Squared Square Takes Shape

Leon and Ian, Mildenhall Monumentals

Leon and Ian, Mildenhall Monumentals

Leon Russell and his assistant Ian Norman, master stonemasons of Mildenhall Monumentals have been hard at work on the Squared Square for the Bill Tutte Memorial on Rutland Hill in Newmarket.  While an undergraduate at Trinity College, Cambridge, Bill and three friends proved a solution to the problem of tiling a square with squares of different sizes (unlike a chess board which is tiled with squares of the same size).  This interest in mathematical puzzles led to him being invited to join the Government Code and Cypher School at Bletchley Park in 1941.

Some of the granite pieces

Some of the granite pieces that will make up the Squared Square

The square is 112 cm x 112 cm and is made up of 22 pieces of polished granite 5 cm thick.  Leon and Ian cut the squares themselves with a 65 years old circular saw because the granite suppliers could not achieve the accuracy required.  The individual squares are in four colours in recognition of Bill Tutte’s proof that that was the minimum number of colours needed on a map to ensure that no contiguous countries had the same colour.  The Squared Square will be surrounded by black granite and will be sunk into the pavement on Rutland Hill to mark the key viewing point for Harry Gray’s iconic sculpture “The Codebreaker”.  The memorial will be unveiled on 10 September but we still need donations towards the scholarship.

Donations can be made via:



Author: Richard Fletcher



Captain Jerry Roberts: A person of Real Quality

Captain Jerry Roberts 1920-2014

Captain Jerry Roberts 1920-2014

Captain Jerry Roberts was a senior cryptographer at Bletchley Park and worked on Tunny (the Lorenz cipher).  In recent years, Jerry campaigned tirelessly for recognition of the Testery, including the great intellectual feat demonstrated by Bill Tutte.

Yesterday I had the privilege to attend the memorial service for Jerry, who passed away in March.


The service was held at St Martin-in-the-Fields church, Trafalgar Square, a perfect setting in the heart of London.  It was a lovely service organised by Jerry’s devoted wife, Mei.  Moving tributes were paid by Sir John Scarlett, Lord Charles Brocket and Professor Susanne Kord. Jerry’s daughters Dora and Chao gave beautiful readings and his talented grandsons Ben and Sammy provided music and song.

St Martins-in-the-Field, London

St Martins-in-the-Field, London, yesterday.

Following the news of Jerry’s death back in March,  Tweets went out across the globe in many languages.  Jerry was described in these Tweets as a ‘hero’, ‘one of the greats’, ‘incredible’, ‘remarkable’, ‘amazing’, a ‘genius’, ‘warm’, ‘funny’, ‘brilliant’ and ‘modest’.  It is the description of Jerry as modest that I find most apposite.  Jerry was always quick to turn attention away from himself and talk about the Testery as a team. Those long forgotten colleagues who were of equal importance.


In December 2013, I spent the day with Jerry and his wife Mei. We discussed Tunny (of course) and what it was like to read messages sent by Hitler.  Jerry said that it was quite exciting the first time he saw a message signed “Adolf Spacer Hitler Spacer Führer” but after that he became very blasé about it.  “And another one”, he said chuckling as he gestured flinging an imaginary message (signed by Hitler) over his shoulder into a pile of discarded messages.  We laughed a lot that day.

Jerry had a great sense of humour and a sharp mind.  He didn’t stop talking about his Bletchley Park colleagues and wanting to promote the hand methods of the Testery.   “It is all about the machines” Jerry complained in response to the long-awaited publication of the General Report on Tunny in 2000.

A true gentleman who said he never had a day of boredom in his life, Jerry was grateful for every single day.  He spoke of the lovely people he had met through telling his code-breaking story, and the difference that it had made to his and Mei’s lives.  Jerry also spoke of how he treasured every month in the garden, even the winter because everything looked so tidy.

With Jerry, December 2013

With Jerry, December 2013

If you were liked by Jerry, you were considered “A person of real quality” and I am honoured to have been included in this group. Jerry admired the people of Newmarket for their recognition of  Bill Tutte and I know that Jerry will be smiling down on us when we unveil Tutte’s memorial on 10th September this year.

At the age of 93, I asked Jerry what advice he could offer to young people today. Jerry responded with these wise words:

“Don’t be afraid to take risks.  Sensible risks.  Because something will work out.  If you’ve got talent, something will work out.  But if you say, as I could have said, my father went in to the bank and what’s good enough for him is good enough for me…you can’t live life like that.”

Si dios quiere (as Jerry would say) we all have happy and fulfilling lives.

Rest in peace Jerry, you truly were a person of real quality.

 Author: Claire Butterfield


Bill Tutte-Worthy of Remembrance


“In all our long history we have never seen a greater day than this. Everyone, man or woman, has done their best.”

Winston Churchill, 8th May 1945

As I sat watching all the pomp and circumstance in Whitehall this morning, I considered all those whose contributions are not so recognised on Remembrance Day.  It would be an impossible task (and indeed a very long blog) to list all those who contributed to the war effort; so today I chose to think of those who through intellect and determination used their brilliant minds to break codes that were believed unbreakable.  Naturally, my mind turns to Bill Tutte and his fellow code breakers at Bletchley Park

(c) BBC

Professor Brian Cox and Captain Jerry Roberts
(c) BBC

Captain Jerry Roberts frequently recounts his experience of being in the same office as Tutte:

“I saw him staring into the middle distance, twiddling his pencil, and making counts on reams of paper; and I used to wonder whether he was getting anything done.  My goodness he was.  It was an extraordinary feat of the mind”. 

Captain Jerry Roberts

Tutte applied the Scientific Method to deduce the logical structure of Lorenz:

 “…by using logic, careful observation and by producing testable hypotheses, he managed to determine exactly how it worked.”

Professor Brian Cox


Simulation of Tutte’s Periodicity Examination
(c) BBC

Bill Tutte has been described as a shy and unassuming man.  It’s amazing to think of Tutte sat quietly with paper and pencil performing one of the greatest intellectual feats of World War Two. Tutte worked away on the problem for months.  He never gave in.  So today on Remembrance Sunday, let us remember those who fought with intellect and determination; Those who used their brilliant minds to achieve the seemingly unachievable; Those whose efforts contributed to shortening the war and saved countless lives.

For too long these great minds have gone without recognition, with your support we can give Tutte recognition he deserves.



Author: Claire Butterfield

Bill Tutte: Frontrunner at the Final Furlong

An internet search for Newmarket and it’s easy to see what it is known for-horses.  The Jockey Club, Tattersall’s and the Gallops are all part of its equine heritage.  But apart from these and a rather large house built by a Sheikh, what else should Newmarket be remembered for?

Well, the equally equine location of Fitzroy House was the birthplace of a certain Mr Tutte, code breaker extraordinaire. But are the inhabitants of Newmarket familiar with Tutte’s humble beginnings and the plans for a memorial in the town? The Bill Tutte Memorial Fund took to the streets of Newmarket to find out…oh and ask about car parking.



Braving the wind and rain at the end of May, we engaged public opinion armed with trestle table, banner, snazzy images, a red post box and buckets of enthusiasm for the most worthy of causes.

Nearly 100 people were selected at random in Newmarket High Street.  The consultation was principally about the loss of parking on Rutland Hill (the location of the proposed memorial) as opposed to the plans for the memorial. The responses were independently analysed by Suffolk County Council and the results are as follows:

  • 66% bring car their car into town; 34% do not
  • 98% do not park on Rutland Hill; 2% do
  • 94% agreed with discontinuing parking on Rutland Hill; 6% disagreed
  • 90% were for a memorial to Bill Tutte on Rutland Hill; 10% were against
  • 82% approved current plans for memorial; 10% disliked; 8% indifferent

Comments included:

  • The need for alternative free parking
  • The memorial has no relevance to town
  • The memorial should be horse racing related
  • More trees and seats are needed by memorial
  • The memorial is too “modern”

Overall the public consultation was positive, with the majority agreeing with the discontinuation of parking and the placement of a memorial to Bill Tutte on Rutland Hill.  We are at the final furlong with the finish line in sight.

Author: Claire Butterfield