Links and publications

Squared Squares - Introductory links

R.L. Brooks, C. A. B. Smith, A. H. Stone and W. T. Tutte

Skinner J.D.; Smith C.A.B.; Tutte W.T.

CAB Smith

CAB Smith

C.A.B. Smith (CABS)

The Story of Blanche Descartes

Arthur Stone

William T Tutte


BBC: Code Breakers Bletchley Parks lost Heroes (Tutte and Flowers)

During his time at Bletchley Park, Captain Roberts came into contact with several brilliant men. He says, in the great successes of Bletchley Park, three men played key roles. Alan Turing (who possibly saved Britain by breaking naval Enigma in 1941), Bill Tutte (who broke the Tunny cipher-system, helping to shorten the war, as Gen. Eisenhower said: Bletchley decrypts shorten the war by at least two years) and Tommy Flowers (who designed and built Colossus, the first electronic computer ever, the Founding Father of todays computer world). 17SEP2009: Captain Jerry Roberts visits the Google London office to speak about his time as a code breaker at Bletchley Park during World War 2. This talk took place as part of the Speakers@Google series, on the 24th August 2009. (1h7m45s)

CJ Bouwkamp

AJW Duijvestijn

JD Skinner II

Ian Gambini

T.H. Willcocks

Graph Theory, Enumeration, Generation and Representation of Planar Graphs

Peter Eades (Sydney) How to Draw a Graph, Revisited

Squared Rectangles, and Variations on Square and Rectangle tiling

Artwork I recently (2022) made for the 50th birthday of my friend, artist Tamás Veszi (USA).
"For the 50th Birthday of my Friend, Hungarian-American Artist, Tamás Vészi, 25x25cm, mixed technique by hand, 2022, photo © Grego, 2022 and photo of Tamás Vészi with his present by Grego)"
Grego Foldvari

John Shier's work on fractal space-filling with squares, (In fact with any shape). John's interesting discovery is that one can fill all space by placing ever-smaller shapes at random without overlap (the areas of the shapes must follow a prescribed sequence). In the limit where one places an infinite number of shapes, they completely fill the space in fractal fashion. The evidence is that any shape will work. It may seem surprising, but all of these varied images are examples of the same algorithm. The rules only apply to the shapes -- the color scheme can be chosen arbitrarily.

Links to further work and examples from John Shier are here.

Related work by Paul Bourke is here

The Squaring Game - a free online tiling game by Prelude Games

Squaring Game
addresses a special kind of tiling puzzles or, more appropriately, tiling quilts, and is based on a well-known mathematical problem called "square packing" or, seen from a different perspective, "square (or rectangle) dissection".

When a game starts, a square (or a rectangle) is divided into smaller squares of various sizes, each with its own color. Rearranging these squares into the original square (or rectangle) is the purpose of the game. Please note that each tiling has one, and only one, solution.

Since squares have even edges and do not stick together, each of them has to be positioned in its exact place on stage A in order to solve the game. Although squares are automatically snapped along a preset grid, their precise rearrangement is your own task.

Squared Square Arty & Crafty

Lorenz Milla's bookshelf based on the Duijvestijn 112 squared square.
Lorenz gave some information on the materials and construction. "It's glued spruce/fir wood, 18mm thick The wood was sawed into fitting pieces, then joined with standard screws after drilling holes. Was a bit tricky to decide which screw to fix first. It took two hours of planning, one hour of shopping, and four hours of screwing (by hand). Next time I'll use the electric screwdriver".

Electrical Network Theory

Updated on ... June 2 2012

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