Killer Sudoku -ZX Spectrum-

 by Forgotten Games

Killer Sudoku – Background

Killer Sudoku is a logic-based number puzzle combining traditional Sudoku with arithmetic challenges.

The grid

• A standard 9 × 9 Sudoku grid.
• Divided into nine 3 × 3 boxes.
• Each row, column and 3 × 3 box must contain the numbers 1–9 exactly once.