This works on searching for contradictions, e.g., when a cell cannot be a box because some other cell would produce an error, it must be a space. More difficult puzzles may also require several types of 'what if?' reasoning that include more than one row (or column). Many puzzles can be solved by reasoning on a single row or column at a time only, then trying another row or column, and repeating until the puzzle is complete.

The picture may help find and eliminate an error. The hidden picture plays little or no part in the solving process, as it may mislead. An error sometimes comes to the surface only after a while, when it is very difficult to correct the puzzle. If guessing is used, a single error can spread over the entire field and completely ruin the solution. Cells that can be determined by logic should be filled. Solvers often use a dot or a cross to mark cells they are certain are spaces. To solve a puzzle, one needs to determine which cells will be boxes and which will be empty. For example, a clue of '4 8 3' would mean there are sets of four, eight, and three filled squares, in that order, with at least one blank square between successive sets. In this puzzle type, the numbers are a form of discrete tomography that measures how many unbroken lines of filled-in squares there are in any given row or column. Nonograms are picture logic puzzles in which cells in a grid must be colored or left blank according to numbers at the side of the grid to reveal a hidden pixel art-like picture. * Auto fill the empty blocks when you have filled all the blacks

* Support Never-End mode, you never run out of them Solve the challenging number logic riddles and reveal the hidden image now! In addition to more than 2000 picture puzzles, this APP also supports automatic generation mode.

It’s a good time killer and it helps you think, makes you more logical and have better memory. Nonogram, also known as Picross, Griddlers, Pic-a-Pix, Japanese Crosswords, is the #1 picture cross puzzle game.

Nonograms Pro downloading