Simple Key Nonogram (5×15)
This is the Simple Key nonogram — a 5×15 picture logic puzzle. Use the number clues beside each row and column to work out which squares are filled, and the picture appears as you go. Every square can be deduced; you never have to guess.
About this puzzle
- Size
- 5×15
- Difficulty
- Normal
- Filled squares
- 30 of 75
- Longest run
- 11
- Typical time
- 20-40 min
- Category
- Everyday objects
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How this board opens
This one opens itself. One sweep of the overlap rule — every row read against its clue lengths, then every column — is worth 56 of the 75 cells, 75% of the board, before you have deduced anything of your own. The most generous opening is column 1, which gives up 13 cells on its own. 2 of the 20 lines are decided outright by their clues, with no room to slide. From there the board finishes on row-and-column logic alone — there is no point where you have to try a cell both ways and see which one breaks. The finished picture fills 30 cells, and the longest unbroken run anywhere in the clues is 11.
About this category
Mugs, umbrellas, light bulbs, scissors — everyday objects has the most varied dimensions of any category on the site: eight distinct grid shapes, from a 5×5 and the catalog's only 5×15 board right up to 15×20 and 20×20. Nothing else here covers that much ground, which makes it the natural category to browse when you want a particular size rather than a particular theme.
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