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.

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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.