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About DropSum

Tetris meets Sudoku in this addictive puzzle game.

DropSum Instructions

Drop tiles into the grid using the mouse. Make adjacent rows and columns of tiles add up to 9. When you do the group of tiles change colour, from grey to blue to yellow and then to red. Make a group with red tiles and they will explode leading to potential combos and massive points!Use the arrow keys to rotate the game board to re-arrange the tiles - very useful for getting out of sticky situations and for advanced players. Clear 10 tiles in one go and you'll earn the power-tile - hold the mouse button to charge the tile before releasing it to slam into the pack.

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