Chiidoku currently advertises up to 400 Campaign levels. The developer’s “400 Levels and New Themes” event says the campaign was expanded to level 400, replacing older public copy that stopped at 300. Use 400 as the current total, but do not infer exact level answers, reward milestones, or difficulty bands from the event.
What the 400-level update confirms
The current experience description repeats “Up to 400 Levels” and challenges players to conquer all 400. Those two first-party records are the strongest available answer to the 300-versus-400 question.
Plan progress in clean blocks
Record your starting level and choose a block small enough to finish without rushing. On each board, follow the same rule loop: close filled rows, columns, and color areas; apply the current no-adjacency behavior; find a forced candidate; place; and rescan.
Stop the block when you begin making unexplained taps. The campaign’s value is progressive practice, not merely raising the level number. Returning later with a clean candidate scan is more efficient than spending repeated mistakes on one frustrated session.
Do not attach an arbitrary number of levels to beginner, middle, or late difficulty. The creator says challenge increases but does not publish thresholds. Describe the current board’s candidate pressure instead: more interactions, fewer immediate singles, or a need for deeper comparison, if those features are directly observed.
Handle a stuck Campaign board
First, confirm you are using the current no-adjacency rule rather than an old “adjacent is allowed” guide. Second, rebuild candidates from every placed Chiikawa. Third, inspect the most constrained row, column, and color area instead of staring at the largest region.
If no forced cell appears, use line confinement: when all candidates for an area lie in one row or column, reserve that line relationship and prune competitors. Use a hypothetical branch only in notes and reject it when it leaves a required unit with no legal cell. Solving Strategy explains the full order.
Avoid searching for a generic “level 217 answer” without a date and reproducible board. Generated or updated boards, theme presentation, and version changes can make an image unreliable. This guide intentionally does not invent a walkthrough for levels that have not been captured and verified.
Distinguish Campaign from Endless
Campaign is a numbered ladder with a current endpoint of 400. Endless Mode uses random puzzles and no level limit. Finishing Campaign does not mean finishing the entire Chiidoku experience; Endless remains an uncapped consistency challenge.
Public materials do not state whether Campaign completion unlocks Endless, whether the modes share hearts or rewards, or whether a streak crosses between them. Use the live menu and result screens. Do not infer an unlock level from another game or an old screenshot.
Use themes without losing readability
The official event confirms new puzzle-board themes. A theme can change contrast and make color boundaries or markers easier or harder to read. If the current game offers theme selection, choose the display that lets you distinguish regions and Chiikawas reliably, especially on a small screen.
Do not publish a theme catalog until names, images, source, and unlock method can be verified. A visual change in one screenshot may be an event presentation, automatic stage theme, or player-selected option. The useful action today is to prioritize readability.
Build a Campaign session record
Progress
Record start level, end level, date, and whether the current game still shows 400 as the endpoint.
Constraint
Name the rule interaction that slowed you: row/column competition, color candidates, or live adjacency exclusions.
Recovery
Record the deduction that restored progress, not an unverified coordinate copied from another board.
Interface
Note device and any theme or scale choice when a border or touch target caused mistakes.
This record lets you see improvement without pretending every player receives identical difficulty at the same stage. It also makes a future bug or rule-change report reproducible.
Rewards and completion status
The public event does not name a level-400 reward, completion badge, coin total, character, or theme unlock. The public badge API was empty when checked, but that does not prove the game cannot display internal achievements or rewards. Read the current level result and collection screens.
Likewise, do not state that each level pays coins or that a particular daily mission counts Campaign clears unless the live UI shows it. Coins and Daily Missions separate confirmed systems from unverified values.
Frequently asked questions
Does Chiidoku have 300 or 400 levels?
It currently advertises 400. The official event says Campaign expanded to level 400; 300 is the older figure.
Are there answers for every level here?
No. Exact answer pages require current reproducible boards. This page provides a progress and solving routine without inventing layouts.
Do rules change after level 300?
No new rule is announced publicly. Continue using row, column, color-area, and current no-adjacency constraints unless the live game says otherwise.
What do I get for level 400?
No public first-party reward is specified. Check the current completion screen and do not rely on guessed lists.
What are the new themes?
Their existence is confirmed, but names, count, unlock methods, and stage mapping need live verification.