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Did you know that SUDOKU is a mental math game that, according to experts in the field of health, provides great benefits for the generation of new neurons? This Sudoku has a structure of a grid of 4x4 squares, which in turn is divide by internal grids of 2x2 squares. These boxes have numbers that are already predefined and that serve as a guide to complete the total 4x4 grid. The objective of this game is to complete the empty boxes by placing a single number from 1 to 4, in the same line or row, the same number cannot exist twice. This same rule applies to columns and also within the box 2x2 squares. Each sudoku has a unique solution. At the end, you will see the solutions for each of the sudokus. In all editions, you will have at your disposal 100 Sudokus to solve. It's time for you to start playing with your mind. Let's have fun!