How to Play Norinori

How to play Norinori: shade two cells per region so every black cell belongs to a 1×2 domino. Dominoes may cross borders. Covers Norinori rules, controls and Hint.

Shade two cells in every region. Every black cell must belong to a 1×2 domino. Dominoes may cross region borders and cannot share a side.

Step 01

Press Start Game

The board stays covered until you start. Unfinished local progress can resume from this screen.

Step 02

Shade two cells

Tap or click a cell to shade it. Two shaded cells that share a side make a domino.

Step 03

Undo, hint, or reset

Undo reverses the last change. Hint reveals part of a correct pair. The board wins automatically when every region is covered legally.

Start a Norinori Puzzle

Press Start Game on an Unlimited board to reveal the grid. If you have unfinished local progress, the board can resume from that save. Timed mode uses a countdown.

How to Shade Cells

Click or tap a white cell to shade it, and click a black cell to clear it. A legal pair is always two cells that share a side.

Click a cell to cycle empty, black and white.

Tap a cell to cycle empty, black and white.

Arrows move focus; Enter cycles the cell.

Mouse

Click a cell to toggle shading. Use this on a computer when you want precise placement.

Phone or Tablet

Tap a cell to toggle shading. Drag is not required.

Keyboard

Arrow keys move the focus. Enter or Space cycles empty, black and white. X marks white. Delete or Backspace clears a cell. Ctrl/Command+Z undoes.

Norinori Game Controls

Every board shows Undo, Hint and Reset. Completing a legal covering wins automatically. Redo is keyboard-only: Ctrl+Y or Command+Shift+Z while the board is focused.

Undo and Redo

Undo reverses the last board change. Redo reapplies an undone change.

Hint

Hint shows a correct shaded cell or pair and may clear a conflicting mark. Hints pause for five seconds. This is a solution hint, not a verdict on the rest of the board.

When you want reasoning rather than a revealed cell, continue with Norinori strategy.

Reset

Reset clears the marks without resetting the attempt timer or move count.

Save and Share a Norinori Puzzle

Progress is stored in this browser. Copy link shares the same numbered puzzle, not your progress. Signing in does not sync puzzle saves across devices.

This browser stores your marks, moves and time.

Copy link shares the numbered puzzle, not your progress.