Everyone can try a few sudoku puzzles for free, but Apple News Plus subscribers ... you have to place the numbers one to nine into a square 9x9 grid. There are nine 3x3 blocks within that grid ...

Here's how you get to that astronomical sum. A Sudoku puzzle consists of a 9x9 grid of squares, broken up into a 3x3 grid of blocks made up of nine squares each. The goal of a puzzle is to fit the ...