| Step 25 | |
This is more complicated. This step and its logic is what the sudoku game is all about. The challenge of taking a series of logical steps to arrive to the inevitable where all the numbers are where they must be is the foremost idea behind the game of sudoku. This also makes sudoku one of the most frequently played logical games in the history of the world. We first need to look at the bottom middle box (where GHI cross MNO). We know that 6 must be in either cell GM or GN, because it can’t be in column O for there’s a 6 in cell BO, and it can’t be in cell IM because there’s a 6 in cell IL. Let’s now look at right middle box (where DEF cross PQR). We know that a 6 must be in column R because it can’t be in cell DP for there’s a 6 in cell DK and it can’t be in cell FQ for there’s a 6 in cell AQ. So now let’s look at the bottom right box of the sudoku table (where GHI cross PQR). We already know based on our previous logic that that there’s a 6 somewhere in row G in the column to the left, and we also know that there’s a 6 somewhere in column R in the above box. There’s a 6 in cell AQ so we can’t put a 6 in column Q. Therefore, the only available cell is cell HP. |
