A police officer pulls over this guy who had been weaving in and out of the lanes. He goes up to the guy"s window and says, "Sir, I need you to blow into this breathalyzer tube."
The man says, "Sorry officer, I can"t do that. I am an asthmatic. If I do that I"ll have a really bad asthma attack."
"Okay, fine. I need you to come down to the station to give a blood sample."
"I can"t do that either. I am a hemophiliac. If I do that, I"ll bleed to death."
"Well, then we need an urine sample."
"I"m sorry, officer, I can"t do that either. I am also a diabetic. If I do that I"ll get really low blood sugar."
"All right then I need you to come out here and walk this white line."
"I can"t do that, officer."
"Why not?"
"Because I"m too drunk to do that!"
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.
