The Daily Shoot 99 and 100
The Daily Shoot for Monday, February 22 (#ds99) just fell into my lap. "Squares and grids surround us in our built environment. Focus in on some squares today and make a photograph." And why did it...
View ArticlePCPlus 294: Learn to solve pentominoes
This article was just a great deal of fun to write. I wanted to talk about Knuth’s DLX algorithm (“Dancing Links”) as a solution to the exact cover problem. I’d already talked about Sudoku (a great...
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