Chiidoku Rules
Every Chiidoku rule explained: one Chiikawa per row, column, and colored area, plus the adjacency restriction and the placements it forbids.
What are the Rules of Chiidoku?
Chiidoku runs on four restrictions working at once: exactly one Chiikawa in every row, every column, and every colored area, and no two Chiikawas touching. Every valid solution satisfies all four together.
Why learn the rules precisely?
Spot Invalid Moves
Recognize illegal placements instantly instead of discovering them after the board locks up.
Read The Board
Know exactly which cells each confirmed Chiikawa blocks in its row, column, and neighbors.
Build Deductions
The rules are the raw material of every forced placement - master them and solutions follow.
Featured & Essential
chiidoku adjacency rules: Step-by-Step Puzzle Guide
Learn chiidoku adjacency rules, row and column limits, colored-area logic, solving steps, level strategies, and tips for safer puzzle clears.
chiidoku colored area rules: Step-by-Step Puzzle Guide
Learn Chiidoku colored area rules with row, column, region, and adjacency strategies for solving levels without random guesses.
All Rules Articles
chiidoku column rules: Step-by-Step Logic Guide
Learn chiidoku column rules with clear examples, solving steps, adjacency checks, level tips, and a practical checklist for reliable puzzle clears.
chiidoku placement rules: Step-by-Step Logic Guide
Learn Chiidoku placement rules for rows, columns, colored areas, and adjacency, plus step-by-step solving tips for levels and Endless Mode.
chiidoku row rules: Step-by-Step Puzzle Walkthrough
Learn chiidoku row rules, legal placements, elimination techniques, adjacency checks, and reliable solving routines for campaign and Endless Mode puzzles.
chiidoku rules: Step-by-Step Puzzle Solving Guide
Learn chiidoku rules, row and column limits, colored areas, adjacency restrictions, level strategies, and reliable tips for solving puzzles without guessing.