Normal sudoku rules apply. Draw a line to pick up three aliens and drop them off in their homes. The two purple aliens (R4C5 and R6C5) must each be dropped off in one of the two purple homes (R1C1 and R1C9), while the orange alien (R5C5) must be dropped off in the orange home (R9C5). The line starts in R9C1 and ends in R5C9, moving orthogonally. It does not visit any cell more than once, nor cross its own path or go through an alien or an alien home. You must pick up an alien when the path orthogonally touches that alien's cell unless there are already two aliens being carried. You automatically drop off an alien when the path orthogonally touches a matching home cell, if no alien is already in that home. On the line, the total sum is the same for each box visited (even by different segments), and this sum is the product of the digits on the aliens. Cells separated by an X and V sum to 10 and 5 respectively and are not on the path EVERY possible X and V where both cells are not along the path is given. Every alien home has a cell with an even digit. Each digit shown on a quadruple clue appears at least once in its four surrounding cells. A digit listed twice must appear at least twice in the surrounding four cells.
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