Opus helped him make 3D sudoku puzzle books that now sell as a printed product

Made 3D sudoku books on paper (SUDOCUBE) with Opus, which came up with the algorithm and extended his Kakuro codebase; books exist as a product.

How it works

Opus comes up with the 3D sudoku algorithm
Extends his existing Kakuro codebase
Generates the puzzles
Books go on sale as a printed product

Why it’s worth knowing

The model invented the core algorithm, not just the layout.

Where it’s from

Summarized from a public post on news.ycombinator.com. See the original ↗

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