Puzzle #151 - Classic Sudoku

There's a misconception that solving Sudoku simply means applying a limited set of established techniques by rote until the puzzle is solved. And while you can find plenty of published puzzles which succumb in this way, and plenty of people who solve in this manner, it's not universally true, and it's not the attraction of the puzzle type for me.

Even within Classic Sudoku, there's a lot of scope for novelty, creativity and beauty. I've been solving some wonderful puzzles over the last few days which prove this to me, and I made this as an homage to one of the funnier puzzles from the set.

The trick in this puzzle, while esoteric, is actually a named technique, sharing its moniker with a nonsense poem first published in the 19th century. Some of the early Sudoku theorists were... unusual.

Rules

Place a number from 1 to 9 into each empty cell so that every row, column, and bold-outlined region contains every number exactly once.

Difficulty: 8/10





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