Hyper Sudoku
Classic Sudoku with four extra 3×3 overlapping regions.

Objective
Follow all classic Sudoku rules plus four additional overlapping 3×3 hyper regions (usually highlighted in color) must each contain digits 1-9 without repetition. These extra regions increase the puzzle's difficulty.
Rules
Row Rule
Each horizontal row must contain all digits from 1 to 9 without repetition.
Column Rule
Each vertical column must contain all digits from 1 to 9 without repetition.
Box Rule
Each standard 3×3 box must contain all digits from 1 to 9 without repetition.
Hyper Region Rule (NEW)
Four additional 3×3 regions (usually highlighted and overlapping with standard boxes) must each contain all digits 1-9 without repetition.
Solving Tips
- 1.
Cells that belong to hyper regions have more constraints than regular cells.
- 2.
Start solving with cells that are part of multiple regions (standard box + hyper region).
- 3.
Hyper regions overlap with standard boxes, creating powerful elimination opportunities.
- 4.
Use the extra constraints from hyper regions to eliminate possibilities much faster.
Printable Hyper Sudoku
Download today's free printable Hyper Sudoku puzzle. Four extra overlapping regions make this variant uniquely challenging.
Download Hyper Sudoku PuzzlePlay Hyper Sudoku
More regions mean more challenges - test your skills with this advanced variant