Fascinating, horrifying, and amusing — all at the same time:
"The Sudoku Affair", Zach Tellman (https://explaining.software/archive/the-sudoku-affair/).
On HN: https://news.ycombinator.com/item?id=42953168
On Lobsters: https://lobste.rs/s/khlha3/sudoku_affair
#WTF #Sudoku #Programming #TDD #ExtremeProgramming #ConstraintSolvers #Puzzles