A new dimension for Sudoku lovers

Nine circles. Five color layers. One connected logic challenge.

Learn the rules

Sudoku-Layer

00:00
Ready to play?

Press PLAY to unlock the board and start the timer.

Layers

Number = cells remaining · ✓ = completed

Rows & columns

Difficulty

Choosing a different level prepares a new game. Press PLAY to begin. Easy: 3–4 clues per circle. Intermediate: at least 24 clues. Expert: 2 per circle (18/45). MASTER: 1 clue in five circles and 2 in four circles (13/45).

Settings

Colors

Choose a position, then a color. Similar colors are not accepted.

Sounds

Volume controls both music and clicks.

Reveal one cell

Reward: reveal the selected cell.

Demonstration mode until the advertising account is connected.

Notes checked

What is Sudoku-Layer?

Sudoku-Layer is a Sudoku variant created by CIMUSOFT for people who enjoy reasoning with numbers. It keeps the idea of placing digits 1–9 without repetition within the relevant groups, but reorganizes the board: nine circles hold five cells each, for a total of 45.

The top, bottom, left, right and center positions form five color layers across the nine circles. Each layer must contain 1–9 exactly once. Rows and columns add groups of nine cells, and each circle has its own target sum. A deduction comes from crossing these constraints: a digit must fit every group its cell belongs to.

Start simply or go deeper

Choose Easy, Intermediate, Expert or MASTER. Easy leaves more clues visible; Expert has two clues per circle; MASTER leaves 13 clues, one in five circles and two in the other four. Use Pencil to note candidates, check single notes and undo moves as you explore the board.

Learn to read the board

The guide explains the four rules with visual examples. Strategies shows how to calculate a remaining sum, eliminate candidates and connect deductions. You do not need advanced Sudoku techniques to get started.

How to play Explore strategies