Nonogram - Picross puzzle

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

In addition to more than 2000 picture puzzles, this APP also supports automatic generation mode. Solve the challenging number logic riddles and reveal the hidden image now!

Fetures:

* Mutiple sizes, from 5x5 to 30x30

* 2000+ picture puzzles

* Support Never-End mode, you never run out of them

* Auto fill the empty blocks when you have filled all the blacks

* Smooth and convenient zoom operation

* Dark mode

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. 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. 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.

To solve a puzzle, one needs to determine which cells will be boxes and which will be empty. Solvers often use a dot or a cross to mark cells they are certain are spaces. Cells that can be determined by logic should be filled. If guessing is used, a single error can spread over the entire field and completely ruin the solution. An error sometimes comes to the surface only after a while, when it is very difficult to correct the puzzle. The hidden picture plays little or no part in the solving process, as it may mislead. The picture may help find and eliminate an error.

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. More difficult puzzles may also require several types of "what if?" reasoning that include more than one row (or column). 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.

Normally, puzzles of this type turn out to be a meaningful picture of something once you've solved them. However, this version also supports to generate the puzzles automatically, they will just look like random groupings of squares. Someone has suggested that this is actually a good thing, since it prevents you from guessing the colour of squares based on the picture, and forces you to use logic instead. The advantage, though, is that you never run out of them.