Sudoku · 7 min read

Sudoku and suspense TV shows: why both keep you hooked

The narrative structure that makes a suspense show hook you from start to finish is the same one that keeps you from leaving a Sudoku puzzle halfway.

There are TV shows you watch in one breath. Mare of Easttown, Sharp Objects, The Killing, Slow Horses, Broadchurch, True Detective season one. You sit down on Friday night and wake up on Sunday morning having slept three hours. It is not lack of willpower. It is narrative structure. Good suspense activates in the brain the same circuit that keeps you from putting down a Sudoku round.

The shared structure is simple. There is a question. Usually, for the show, who did what to whom (murder, disappearance, mystery). For Sudoku, which numbers go in which cells. The question has one correct answer. You will not find it by inspiration or by guess. You will find it by deduction, piecing clues that come in slowly. And only if you pay attention.

The detective (in the show) is the viewer’s avatar. Sherlock, Marcella, Saga Norén, Salvador Sands. The detective looks at the scene, stays silent, fits the pieces. The viewer does this along, in the dark. The point is not that the detective is smarter than you. The point is that you play along. When the detective figures it out first, you feel frustrated. When you figure it out first, you feel proud. A good show calibrates that balance.

Sudoku does exactly the same. The board is the scene. The filled cells are the clues. Each new number you place is a deduction out loud. Each number you erase because it conflicted with another cell is a theory that fell. When the round ends, you feel like you solved something. Just like the last episode of Mare of Easttown.

The difference between the show and the Sudoku is the duration of the question. A suspense show takes eight to twenty hours to close the question. Easy Sudoku takes five minutes. Medium, fifteen. Hard, half an hour. Expert, an hour or more. But the pleasure curve is the same. Question opens, clues come in, frustration grows, pattern emerges, answer appears, satisfaction closes. You finish feeling like you had a small ending.

That is why Sudoku works as a short show. In fifteen minutes, you have a complete arc. Opening, development, turn, conclusion. The ending delivers the same kind of closure as the last chapter of a tightly written detective novel. Not addictive in the sense of stealing ten hours in a row. Addictive in the sense that when you finish a round you think: let me play one more.

There is another parallel worth noting. The best suspense shows do not use jump scares, alarming soundtracks, frenetic editing. Mare of Easttown has a slow rhythm, a gray palette, contained acting. The tension comes from the question, not the effect. Sudoku, the same way, does not use flashy sound, loud animation, aggressive gamification. The tension comes from the puzzle. Sudoku BLA’s design follows that philosophy: clean board, editorial typography, silence. Clean suspense.

If you like suspense shows, your brain is already trained to like Sudoku. You just need to download an app that respects the genre. Sudoku BLA is on the App Store, works offline, has eight thousand puzzles across four levels. When you finish the next season of Slow Horses and start waiting for the next, open the app and play an expert. The brain will feel right at home.

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Sudoku BLA

Sudoku, pure. Eight thousand puzzles across four levels. Three themes (Areia BLA, Tinta, Papel). No ads, no data collection, no subscription. Universal for iPhone, iPad and Mac.