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Paint It Black Sudoku (285)
Instruction:
Shade some cells such that the numbers outside the grid indicate the number of shaded cells in each shaded stretch in the corresponding row or column. If there is more than one number, the given order is valid and there must be at least one white cell between the stretches of shaded cells. Then transfer the digits from the white cells into the blank grid and solve it as classic Sudoku. Place a digit from 1 to 9 into each of the empty cells so that each digit appears exactly once in each row, column and 3x3 outlined box.