This 25-minute video is the most riveting sudoku puzzle you will ever watch

I didn’t go into today thinking that I would be awed by a sudoku puzzle. But after a tweet popped up on my timeline promising that I would not only watch a man spend nearly half an hour solving a puzzle, but that it would be “the highlight of my day,” I was intrigued. The result is one of the most incredibly satisfying videos I’ve ever seen.

The man in question is Simon Anthony. He is one half of the sudoku YouTube channel Cracking the Cryptic, which posts several videos a week walking through some of the hardest and most interesting sudoku puzzles in the world.

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