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ShirokuroPuzzle, Logic, Casual

Shirokuro

Weave pale moons to dark suns on a moonlit loom.

Hall of records

Shirokuro

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Game menu

All games

The game’s own pause and menu rules apply. Opening this panel alone does not stop its clock.

Settings

Applies across the arcade. Browsers may slow games in background tabs. Turning this off does not change a game’s ranking rules.

About Shirokuro

At the moonwell sanctuary, a Veil Loom holds pale moons and dark suns over indigo cloth. Join opposite circles with straight luminous threads. The brass frame and quiet chimes bring each link to life.

Explore 180 original charts: sixty each on 5×5, 6×6 and 7×7 looms. Every chart has one checked solution; later shelves use longer sightlines and crossings that make the choice matter.

Your clock starts when a chart opens. An uninterrupted first solve can set the best time shown with its holder on every chart card.

How to play

Goal
Pair every pale circle with one dark circle using straight horizontal or vertical threads that do not cross or pass through another circle.
How it ends
A chart is complete when every circle has exactly one partner and all threads obey those rules; there is no loss.
Record
Your first solve time is kept per chart, and the fastest verified first solve appears with its holder.
  1. Pair every pale moon with one dark sun. A thread must run straight along a row or column, cannot pass through another circle, and cannot cross another thread. Every circle has exactly one partner; empty squares may remain unused. The worked picture shows one valid thread already placed, then the second pair joined.
  2. Tap a circle, then an eligible opposite circle to weave. Dragging between the two circles is another way to make the same link. Tap a linked circle to lift its thread. A rejected move names the rule it would break.
  3. Undo lifts your last thread. Restart clears the loom but keeps the clock running. A chart finishes as soon as every circle is legally paired; there is no loss.
Worked example for Shirokuro
Worked example. See how the rules apply to a real position.

Controls

InputAction
Tap / click two circlesJoin an eligible pale and dark pair
Drag between circlesWeave the same straight legal thread
Tap a linked circleLift its thread
Arrow keysMove focus among circles
Space / EnterSelect or link the focused circle
Backspace / DeleteLift the focused thread
ZUndo the last thread
EscapeClose a panel or return to the atlas

Good to know

Saved first solves are local, while only an uninterrupted first session can submit a time. Progress and reduced motion save in this browser; sound uses the shared site setting.

Watch how to play

The rules, then Chart 1 played start to finish. Played by an automated player at a person's pace; the narration is a synthetic voice. English captions and chapters on YouTube.

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