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.
Play Hyper Sudoku
More regions mean more challenges - test your skills with this advanced variant