MIT Mystery Hunt Puzzle Index: Keyword Data

paint by numbers (logic puzzle)

In the standard form of this puzzle, a large empty grid is provided, along with a set of clue numbers on each row and each column. Some cells are to be shaded so that each row or column contains groups of shaded cells, separated by one or more blank cells, with the lengths of these groups matching the provided clue numbers, in order. There are common variants where cells may be shaded in different colors or half-shaded with triangles; in these variants, the different colors or triangles in each row are normally given in the clues, and the requirement of a blank cell between groups is waived if they are different types, or any types of triangles. In the standard form of this puzzle, a large empty grid is provided, along with a set of clue numbers on each row and each column. Some cells are to be shaded so that each row or column contains groups of shaded cells, separated by one or more blank cells, with the lengths of these groups matching the provided clue numbers, in order. There are common variants where cells may be shaded in different colors or half-shaded with triangles; in these variants, the different colors or triangles in each row are normally given in the clues, and the requirement of a blank cell between groups is waived if they are different types, or any types of triangles. Another variant allows oversized cells in the grid which cover multiple rows and/or columns, but count as one cell in the clues.

Also called: Edel puzzle, Griddlers, Hanjie, Nonograms, Pic-a-Pix, Picross

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Nikoli-style logic
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