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" on
the grid. Can you figure it out? Move your mouse over the puzzle to
reveal the answer. The correct position 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," "8" and
"9," so
the
remaining boxes in the first row, highlighted in yellow, must be "1,"
"8"
and "9."
2. Look at the
first column. There can't be any additional "8"s or "9"s in that
column
because there is already an "8" and a "9" in that column. The first
column is
darkened because "8" or a "9" can't go in that column. The yellow
highlighted boxes must be "8" and "9" because those are the only places
that "8" and "9" can still go in.
3. Look at the
first row again. Each row can only contain the digits 1 though 9 once
because
of the rules. Since we know that the yellow highlighted boxes are "8"
and "9," the first row already has every digit but "1," so the
remaining box in the first row must be "1." The box that the "1" has to
be in is highlighted green.
