Sudoku has always been a brain game for grown-ups. But nowadays, more and more young kids start to tackle Sudoku and greatly benefit from the logic, focus and thinking training that it could bring. So, how hard is it for […]
Sudoku has always been a brain game for grown-ups. But nowadays, more and more young kids start to tackle Sudoku and greatly benefit from the logic, focus and thinking training that it could bring. So, how hard is it for […]