Easy SUDOKU with Faces!? 4x4,6x6,7x7

Easy SUDOKU with Faces!? 4x4,6x6,7x7 Do you want to strengthen your kid's thinking ability? Is it possible to train your head by doing puzzles of stone? That is the origin of the development of this application. I hope children would have fun playing with SUDOKU, train the brain, and acquire thinking skills. It also becomes a brain train of elderly people. There are 100 levels in each puzzle, so …