Classroom Sudoku (v4.0) Classroom Sudoku Instructional Mode Teaching Worksheet Grid Selection 4 x 4 Starter 6 x 6 Intermediate 9 x 9 Advanced Missing Per Block Regenerate Board Print Portrait PDF Name: ____________________________ Date: ________________ Sudoku Progressive Learning Directions: Fill In The Empty Squares So That Every Row, Column, And Thick-Bordered Box Contains Each Number Exactly Once. Answer Key