A speeding motorist was caught by radar from a police helicopter in the sky.
An officer pulled him over and began to issue a traffic ticket.
"How did you know I was speeding?" the frustrated driver asked.
The police officer pointed somberly toward the sky.
"You mean," asked the motorist, "that even He is against me?"
Sudoku is played on a square field 9 by 9 of cells. The field itself is divided into regions (3 by 3 squares).
The goal of Sudoku is to fill all the empty cells with numbers 1-9 (one digit per cell), using the following rules:
1. The number can appear only once in each row.
2. The number can appear only once in each column.
3. The number can appear only once in each district.
Simply put, the same number can appear only once in each row, column and region.