Row checker
One token per row. Scan the target row for an existing token before anything else — it is the fastest check and removes the most cells.
Every Chiidoku board is solved by the same squad: four placement checks, a heart budget, and your collection goals. This page turns them into a repeatable session plan — what to check, in which order, and when to stop. The risk it manages is simple: one unchecked placement can end a streak.
The official listing gives every placement exactly four constraints. Treat each as a squad member with one job — a placement only ships when all four sign off.
One token per row. Scan the target row for an existing token before anything else — it is the fastest check and removes the most cells.
One token per column — the Sudoku half. Combined with the row check it confines most early-board placements to one or two candidate cells.
One token per colour region. The check beginners forget: a cell can be row- and column-clear and still sit in a region that is already taken.
Two tokens cannot touch — even diagonally (the listing words them Cats since the October 2026 Catdoku rename; Chiikawas before). Inspect all eight neighbouring cells of the candidate; corners count. This is the Minesweeper half of the ruleset.
All four rules are from the official Roblox listing, checked 2026-10-25.
Run the same order every time — the documented streak advice is exactly this: a consistent scan order and never guessing.
Rows, then columns, then colour regions, then the eight-cell neighbourhood of every placement. Community streak advice is consistent: a fixed order prevents the missed check that breaks a streak.
Every documented source agrees the game promises one logic-reachable solution. A guess that happens to fit is the single most common streak-killer because hearts (or the run itself) punish it.
On Medium-and-up boards (about level 151 onward, per the community band table), slow down before placing: candidate-mark first with X marks, then commit.
Both plans use only facts with sources: the rules from the official listing, hearts and controls from recorded gameplay, cosmetics from the community wikis.
Goal: daily-mission rewards plus a few campaign bands toward the next unlock. Open the mission panel first and note overlapping objectives (the daily-missions page documents the refresh), clear missions inside your usual Standard run so one session serves both, then check your balance before and after to measure the session's coin yield. Spend only on a character you actually want — the collection is cosmetic, so the unlock can wait a session without any progression loss.
Goal: extend a win streak on Medium-and-up boards (about level 151 onward on the community band table). Commit to the six-step ritual above, use X marks on every uncertain cell, and cap the session at the first board where you catch yourself guessing — ending on purpose keeps the personal best you already have. Streak restoration after a loss is not documented, so treat the current streak as unrepeatable.
Chiidoku has no combat team — your squad is the routine you bring to every board: the four placement checks (row, column, region, adjacency), your heart budget, and the characters you collect along the way. Planning those three is what this page is for.
Any you like. Both community wikis document characters as cosmetic — they never change the grid, difficulty, or payouts — so there is no gameplay-first unlock order. Pick the one you want to see on the board; the official listing says coins unlock characters, and GamerTweak notes you choose which.
Candidate-mark before you commit: the recorded control scheme uses one tap for a white X mark and a double tap to place. Mark every legal-looking cell first, eliminate by the four checks, and only then spend the double tap. A placement you cannot justify is a heart you are about to lose.
A fixed scan order and a no-guess rule. Community streak advice is identical on every board: rows, then columns, then regions, then the eight-cell neighbourhood of each placement. Endless ends when you solve incorrectly, so the slow accurate loop beats the fast hopeful one.