Guide

Chiidoku Endless Mode and Streak Help

Endless is Chiidoku's accuracy exam: the game generates random puzzles that keep getting harder, and a run continues only while every solve is correct. This guide rebuilds your board routine around that one constraint — forced cells first, marks before placements, and a stop rule that protects the streak.

Quick answer

Solve slowly or the run ends

Randomly generated puzzles that become more challenging (official listing, September 2026 wording; the October 15, 2026 rewrite no longer lists an Endless row).

The community documentation fills in what the listing line leaves out: No fixed final level; a run continues while you keep solving correctly, so one careless placement ends it. Community wikis recommend a fixed scan order and treating Endless as an accuracy challenge. That makes Endless mechanically different from the campaign even though the rules are identical — the campaign forgives a failed board with hearts and retries, while Endless converts any failed solve into a finished run. Every habit that pays off here is a habit the campaign taught you first, just enforced all at once.

Routine

The between-attempts review loop

Random boards punish pattern memory — a routine you can run the same way on any board is worth more than level knowledge.

1. Open with forced cells

Scan for singleton regions first — a region with one legal cell is a free placement. Then rows and columns with one surviving candidate. Forced cells cost nothing and open the board.

2. Mark, do not place

The recorded control scheme gives one-tap white X marks. On any board past the opening, mark every possible cell before committing a placement — hearts and runs are lost on double-taps, not on marks.

3. Run the four checks per placement

Row, column, colour region, and the eight-cell neighbourhood — diagonals included, per the official no-touching rule. A placement you cannot justify to all four checks is a guess wearing a costume.

Streak doctrine

Protecting a run

Use a fixed scan order on every board — the documented community streak advice is exactly this, because the missed check is always the one you did out of order.
Never guess to save time. The game promises one logic-reachable solution per board, so hesitation is information: if nothing is forced, keep eliminating.
Slow down as boards scale. The community band table puts real difficulty around level 151 onward; Endless compresses the same climb into one run.
End the session on purpose. Streak restoration is undocumented, so the streak you have is the only one you can bank.

Undocumented

What nobody can tell you yet

These stay open questions in every current source — a page that claimed answers would be inventing them:

• Whether streaks restore after a loss
• Whether personal-best streaks persist between sessions
• Any wave or level counter format for long runs

The safe reading: treat hearts as per-run, streaks as fragile, and personal bests as session-scoped until the game itself shows you otherwise.

FAQ

Endless-mode questions

How does Endless mode work in Chiidoku?

Per the official listing's September 2026 wording, Endless generates random puzzles that become increasingly hard; the October 15, 2026 description rewrite (which renamed the game to Catdoku) no longer lists an Endless row, and no source documents the mode's removal from the game itself. Community wikis add the crucial detail: there is no fixed final level — a run continues only while you keep solving correctly, so one wrong placement ends it.

Is Endless mode good for earning coins?

Community wikis list endless streaks among the coin sources, alongside campaign clears and daily missions. Random boards make per-run payouts less predictable than the campaign, so treat Endless as your accuracy challenge first and a bonus income line second.

Do hearts apply in Endless mode?

Recorded runs across the game show the remaining-heart counter governing mistakes, and Endless ends on a wrong solve regardless. Whether your heart pool carries into a run or resets has not been publicly documented — check your own HUD when a run starts.

Does my streak survive a failed run?

Unknown — genuinely. The fan guide records that streak restoration and personal-best persistence remain undocumented, and no official source covers them. Plan sessions as if a lost streak stays lost.

What board sizes does Endless use?

Not documented for Endless specifically. Recorded campaign boards grow from 4x4 to at least 5x5 by level 8, and Endless's 'increasingly hard' scaling suggests boards grow too — but that is inference, not a documented fact.

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