Binairo
2 posts on this topic.
21 October 2026 · 6 min read
How we prove a Binairo has one solution
A Binairo is two symbols and three rules. Generating one that follows them is easy; proving it is the only grid that does is the real work. Here is how.
18 October 2026 · 6 min read
How to make and sell Binairo books on Amazon KDP
A guide to making Binairo (Takuzu) books for Amazon KDP: pick a grid size, generate single-solution 0-and-1 grids, get the interior right, and upload.