Sudoku is very entertaining logic puzzle. It became popular in the early 00's and since then is still a good game for all ages and skills. The objective is to fill a 9×9 grid with digits from 1 to 9 following some simple rules.

- Select an empty cell and choose a number from 1 to 9 to fill it;
- The objective is to fill all the cells following these three basic rules:
- Don't repeat the numbers in the same
**row**; - Don't repeat the numbers in the same
**column**; - Don't repeat the numbers in the same
**subgrid (3x3 box)**;

- Don't repeat the numbers in the same

Complete the grid by using logic and the given clues of each problem.

Quizzes where you only need logic to solve them.

Einstein said that only 2% of the world could solve this problem. Can you do it?

Use logic deductions to solve problems that are similar to the Einstein's Riddle.