Sudoku Technique Practice

Generates puzzles in your browser where the first technique beyond singles, locked candidates and subsets (among the fish, wings and turbot fish offered here) is one you pick. Runs the HoDoKu generator and solver locally; nothing is uploaded.

Fish

Wings

Turbot fish

Rarer techniques can take minutes. Mutant fish without fins are almost never the first step, so expect to stop early.

Export

Puzzles Include technique name and solution

Built from HoDoKu 2.2.0 by Bernhard Hobiger (GPLv3), compiled to WebAssembly with TeaVM. Source and build scripts are in this repository.