To the right is
an example of a partial Sudoku puzzle. Using only the given
information, there is a way for you to locate the position of a "1" and
another number on
the grid. Can you figure it out? Move your mouse over the puzzle to
reveal the answer. The correct position of the "1" will be revealed,
and the correct position of the other number will be highlighted in
green.
Step-by-Step Explanation:
1. Look at the
first row. Each row can only contain the digits 1 though 9 once because
of the rules. The first row already has every digit but "1" and "9," so
the
remaining boxes in the first row, highlighted in yellow, must be "1"
and "9."
2. Look at the
second column. There can't be any additional "1"s in that column
because there is already a "1" in that column. The second column is
darkened because a "1" can't go in that column. Of the two boxes that
"1" and "9" had to be in, the "1" can only be in the first box because
the other box can't be "1". The box that the "1" has to be in is
highlighted green.
3. Look at the
first row again. Each row can only contain the digits 1 though 9 once
because
of the rules. The first row already has every digit but "9," so the
remaining box in the first row must be "9." The box that the "1" has to
be in is highlighted green.
