About Sujiko
At an Orenvalt moonwell, place nine ivory number stones on a carved slate table. Four luminous pearls each count the four stones around them. The pearls respond as the overlapping sums come into balance.
Choose any of 240 fixed tablets across four shelves. Each has one independently verified answer. The shelves begin with three given stones and gradually remove them, until the Moon Stones offer only the four sums.
The clock runs through the tablet shelf during a visit. Your first solve time is saved locally; an uninterrupted first solve can set a verified public best. Each tablet card and the active game show that public best and its holder.
How to play
- Goal
- Place each digit from 1 to 9 once so every moonpearl ring equals the four adjacent stones.
- How it ends
- A tablet is sealed when all nine digits are placed once and all four sums match; there is no loss.
- Record
- Your first solve time is kept per tablet, and the fastest verified first solve appears with its holder.
- Fill the 3×3 tablet with digits 1 through 9, using each once. Every pearl shows the target sum of its four neighbouring stones.
- Tap a square and then a number stone, or use the keyboard. A gold pearl has the right sum; an amber pearl has all four stones but a different sum. Use overlapping pearls to deduce shared stones.
- Undo and Clear let you revise placements. Restart clears placed stones but keeps the clock running. Seal the tablet when every digit and all four sums are correct; a reloaded tablet keeps progress but its first seal stays local.
Controls
| Tap / click a square, then a number stone | Place or change a digit |
|---|---|
| Arrow keys | Move among the nine squares |
| 1–9 | Place a digit in the selected square |
| Backspace / Delete / 0 | Clear the selected square |
| Z | Undo the last placement |
| Escape | Close a panel or return to the tablet shelf |
All 240 tablets have exactly one answer, independently reproved at build time. Given stones are fixed; duplicate digits are flagged and cannot seal a tablet. The clock continues while visiting the shelf, and an uninterrupted first solve can rank; reloaded attempts seal locally because the page play token belongs to a new visit. Progress and reduced motion save under morass.sujiko.v1; sound follows the shared site setting. No ads or analytics run inside the game.
