Sudoku Flow

Sudoku news

A monthly round-up of what happened in the Sudoku world, checked against its sources. Every item links to where it comes from.

Sudoku news, October 2026

The World Sudoku Championship comes to Kolkata, India, this month, with a public puzzle day during championship week. Plus the Czech championship, the first results on the road to the 2027 championship in France, and two new research papers that use Sudoku.

Edition of October 7, 2026 →
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