Tag Archives: Sudoku

G. C. Steward lectures 2008

Posted on 05/04/2015 by Peter Cameron

While I was uploading lecture notes, I also put on the page the notes from my G. C. Steward lectures at Gonville and Caius College in 2008. You can find them here. I spent the first half of 2008 in … Continue reading →

Posted in history, Lecture notes, Neill Cameron artwork | Tagged , , , , , , , , , , , , , , , | Leave a comment

Picture of an isomorphism

Posted on 30/09/2014 by Peter Cameron

We spent a very busy and enjoyable weekend with Hans Hockey, a statistician who lives in Hamilton, and his family. When we arrived, Hans showed me a picture he had taken, of the 81 SET cards laid out on a … Continue reading →

Posted in exposition | Tagged , , , , , | 1 Comment

Futoshiki squares

Posted on 19/05/2014 by Peter Cameron

Futoshiki is a puzzle in the spirit of sudoku, involving constructing a Latin square from some partial information, which can be found in some newspapers now, including the Saturday Guardian. Probably someone has looked at the mathematics of futoshiki, but … Continue reading →

Posted in exposition | Tagged , , | Leave a comment

Bluebells, 2

Posted on 10/05/2012 by Peter Cameron

I didn’t give you enough information in the preceding post to find the grid reference to the bluebell wood. Here is some more, which should be more than enough. This is a part of the substitution table (rows and columns … Continue reading →

Posted in exposition | Tagged , , , , | 1 Comment