Blog · Category
Sudoku
7 essays in this category. In reverse chronological order.
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01
May 29, 2026
7 min read
Sudoku and chess: two logic games, two ways of thinking
Chess is an adversarial game. Sudoku is an absolute game. The philosophical difference between the two defines when each fits in your week.
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02
May 28, 2026
6 min read
Sudoku, crosswords and cryptics: three games, three brains
The broad family of brain games has three main members. Each one exercises a different muscle. Whoever understands the difference picks better, or rotates between them.
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03
May 27, 2026
7 min read
History of sudoku
From the French newspaper Le Siècle in 1895 to American Howard Garns in 1979, from Japanese publisher Nikoli in 1984 to The Times of London in 2004. A crossing of three continents in nearly 130 years.
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04
May 21, 2026
6 min read
Pencil marks: the secret behind hard sudoku
Why marking candidates inside cells is the difference between the casual player and the one who finishes expert puzzles. How auto-notes work in Sudoku BLA, and the design decision behind the Sombra BLA gray.
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05
May 19, 2026
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.
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06
May 16, 2026
9 min read
The 5 sudoku techniques every player should know
From naked single to X-wing. The five techniques that separate the beginner from the player who finishes expert puzzles.
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07
May 15, 2026
8 min read
How to play sudoku, from zero
A complete tutorial for someone who has never played. The single rule, the three basic techniques, and where to start with Sudoku BLA.
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