3D Sudoku

How to Play 3D Sudoku

  1. The 3D Sudoku puzzle consists of 9 layers, each a standard 9x9 Sudoku grid.
  2. Each layer must follow the classic Sudoku rules:
    • Each row must have numbers 1–9 without repetition.
    • Each column must have numbers 1–9 without repetition.
    • Each 3×3 box must have numbers 1–9 without repetition.
  3. 3D Rule: A number placed at a specific row and column must be unique across all layers in that exact cell position. For example, if Layer 1 has a '5' at (row 2, col 3), no other layer can have a '5' at (row 2, col 3).
  4. Click on any editable (non-prefilled) cell to select it. Type a number between 1 and 9 to fill the cell.
  5. Invalid moves will be visually indicated. You cannot enter a number that breaks the rules.
  6. Solve all 9 layers while satisfying both the traditional and 3D rules to complete the puzzle!

Tip: Focus on one layer at a time, but keep cross-layer conflicts in mind.

Tip 2: To get the better view of all the layers in 2D form, play on desktop and zoom out

Layer 1

1
3
2
5
3
5
4
2
5
5
6
4
7
6
8
3
9
6

Layer 2

1
4
2
6
3
4
4
3
5
4
6
3
7
5
8
5
9
5

Layer 3

1
8
2
5
3
5
4
3
5
5
6
6
7
4
8
4
9
6

Layer 4

1
8
2
5
3
5
4
6
5
4
6
2
7
3
8
6
9
5

Layer 5

1
3
2
2
3
7
4
1
5
5
6
3
7
6
8
3
9
6

Layer 6

1
6
2
5
3
5
4
8
5
5
6
4
7
5
8
4
9
4

Layer 7

1
6
2
4
3
3
4
7
5
5
6
4
7
5
8
5
9
2

Layer 8

1
5
2
1
3
6
4
3
5
6
6
8
7
5
8
5
9
4

Layer 9

1
3
2
5
3
2
4
5
5
3
6
3
7
6
8
4
9
5