In this game there will be a grid of randomly placed
blank squares, a series of squares connected
horizontally or vertically form a group, before each
group is a block with a number on it. The object of
this game is to fill in the squares with numbers from
1 to 9 so that the numbers in the groups do not repeat
and that the numbers sum up to the number before the
group. The faster you finish the game, the higher your
score. When you are stuck, you can click the hint
button to get some hints, but you will suffer a time
penalty.

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