Σ-Sigma

Σ is a logic support tool designed for solving Killer Sudoku cages.

Enter the target sum, number of cells, excluded digits, and required digits. The app instantly generates all valid combinations that match your conditions. No more manual calculations—focus on logic and move forward efficiently.

■ Key Features
• Generate combinations from cell count and sum
• Filter using excluded and required digits
• View all possible sets instantly
• Support for the 45 rule (total sum strategy)
• Clean and intuitive interface

■ Who it’s for
• Killer Sudoku players
• Advanced puzzle solvers
• Anyone who prefers logical deduction over guesswork

■ Concept
Σ is not a solver.
It is a thinking tool.

It clears your view, organizes possibilities, and helps you focus on logic.

Handle complex cages with confidence.
See all options at once and find the shortest path to the solution.