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Doppelblock (Variable) (873)
Instruction:
Place either a block or a number into each cell so that the numbers in each row and each column are precisely the numbers in the provided list (not necessarily in the same order). Each row and each column will have exactly two cells with blocks in them. The numbers outside the grid indicate the sum of the numbers between the two blocks in that row or column. Some cells may already be filled in for you.