How to play
- Goal
- Fill each square with a sun or moon so every row and column has equal numbers of each, no three matching symbols in a row, and no duplicate rows or columns.
- How it ends
- The chart is solved when every square is filled and all three rules hold; there is no loss state.
- Record
- The fastest first solve of each chart is kept as a public record, with its holder's name.
- Fill each square with a sun or moon. Each row and column must have exactly half suns and half moons. Never place three of the same symbol in a row; no two complete rows or columns may be identical.
- The worked example shows Chart 001: a forced sun goes into the highlighted square. The two grids are real positions from the game. Fixed woven symbols cannot be changed.
- Tap an empty square once for sun, again for moon, and again to clear it. Right click reverses that cycle. A chart completes automatically when every rule holds; there is no loss state. Undo restores a placement, and Restart clears your symbols without resetting the first clock. Replays are untimed practice. Returning to the atlas in the same page keeps the first clock and public record chance; reloading an unfinished chart keeps its marks but makes its first finish local only.
Controls
| Tap / click a square | Cycle empty → sun → moon → empty |
|---|---|
| Right click a square | Cycle in reverse |
| Arrow keys | Move focus through the cloth |
| Space / Enter | Cycle a focused square |
| 0 / 1 / Delete | Place sun, place moon, or clear a focused square |
| Undo / Z | Restore the last placement |
| Restart | Clear your symbols without resetting the first clock |
| Escape | Close a panel or return to the atlas |
All 160 fixed charts have one independently verified answer and an elementary deduction trace of at most ten rounds. The balance, no-triples, and distinct-line rules each matter across the bank. Private witnesses do not ship. Saves use morass.takuzu.v1; sound follows the shared site setting. No ads or analytics run inside the game.
About Takuzu
In the Sky Weavers' Hall, place suns and moons on a celestial cloth. Balance every row and column, keep triples apart, and give every completed line its own pattern.
All 160 charts have one independently verified answer and an elementary deduction path. Every shelf is open from the start.
Your first finish time stays in this browser. An uninterrupted first solve can claim the named public best shown on each chart card.
