The Challenge
The Challenge window gives you the opportunity to try to
solve the puzzle yourself, with the program providing some assistance:
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You can try any arrangement of digits you'd like.
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The program will automatically enforce the rule requiring that
each digit be used only once.
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The program will do the arithmetic and show you which cells
satisfy the rule requiring multiples, and which do not.
Color Codes
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Green: The sum of the digits in the adjoining cells is a multiple.
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Red: The sum of the digits in the adjoining cells is NOT a multiple.
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Yellow: The cell, or one or more of its neighbors, is empty.
Entering Digits from the Keyboard
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Select a cell by clicking with the mouse or by pressing the
"Tab" key to cycle through the cells. The selected cell will be
indicated by a gray border.
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Type the digit. Only an available digit will be accepted.
If the selected cell already contains a digit, it will be returned to
the palette.
Entering Digits by Clicking
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Select a cell as in the previous section.
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Click an available digit in the palette. It's value
will be assigned to the selected cell.
Dragging Digits
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Drag a digit from the palette of available digits. The
destination will be highlighted with a blue border.
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Drag a digit from one cell to another. If both cells have
values, they will trade places.
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Drag a digit out of a cell, either back to the palette,
or simply to the area surrounding the puzzle.
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