If you’re in this article, the chances are that you already know what fun picture puzzles are. Also known as Picross, Nonogram, and Griddler, cross numbers is a must-try game that’s not only challenging but also quite engaging. Most of its easy-to-medium level puzzles can be solved with simple techniques. However, evil challenges require you to get into the depths. So if you’ve exhausted all your solving tactics, here are a few helpful comprehensive solution techniques:
Forcing
Right in the middle of an uncompleted row, space is placed to force a large block to either side. Also, if there’s a gap too small for any block to be forced, fill it with spaces.
Glue
If there’s a box not too far than the first clue’s length, the first clue will be forced outwards while spreading through that box. Farther away from the border, this technique also applies in the middle of the row. If the first clue is forced to the right of space, it’ll act as a border. But if the clues are restricted to the left of forcing space, the first one may be preceded by some more clues.
Joining & Splitting
Sometimes boxes closer to each other may combine into a split or block by a space placed into several blocks. If there’s an empty cell between two blocks, the cell will either be a space or a box. If joining the blocks by a box produces a larger block, the cell is space. But if splitting the blocks provides a smaller block without sufficient free cells, this cell will be a box.
Mercury
If a row has a box that is in the same distance from the border as the length of the first clue, mark the first cell as space since it wouldn’t fit the left of the box. Besides, if the box is a block of more boxes to the right, there’ll be additional spaces left in the beginning.
Punctuating
It’s essential to immediately encompass each completed block by splitting spaces to solve a tougher level successfully. Precise punctuating helps you finish off the level with ease as it leads to more Forcing.
Contradiction
Apply contradiction when all other methods exhaust. Try an empty cell to be a box; if there’s an error, mark the cell as space. With this technique, just a few cells may lead to any progress, but you can start off with cells that have non-empty neighbors, are close to borders, or fall within rows consisting of non-empty cells.
This isn’t an exhaustive list, but we hope these cross numbers solving techniques help you achieve success. And who knows, you might just invent your own strategies on the way!
Let us know what helps you get through solving challenging Nonograms. We’d be happy to read your comments!
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