Hints
Vague, concrete or the full step
You choose how much it gives away. It can just name the technique, or highlight every candidate involved.
The HoDoKu solver, now in your browser
Every step,
explained.
The hint engine, analyzer and technique library from HoDoKu, rebuilt in TypeScript. No Java and no install. It tells you which step comes next and why it works.
Analyzer
See the whole solution path
Get the techniques the solver would use and the hardest one required, plus a difficulty rating for any puzzle you paste in.
Library
From singles to last resort
32 technique guides, written new. Every example is a board you can step through and open in the app.
The solver finds the same steps as HoDoKu 2.2.0 (we compare them step by step), so a hint is always a real technique, never a guess. It runs entirely in your browser and works offline once installed.