Home
400 Straights Puzzles: Hard to Very Hard Straights 9x9
Barnes and Noble
400 Straights Puzzles: Hard to Very Hard Straights 9x9
Current price: $10.99
![400 Straights Puzzles: Hard to Very Hard Straights 9x9](https://prodimage.images-bn.com/pimages/9781727117554_p0_v2_s600x595.jpg)
![400 Straights Puzzles: Hard to Very Hard Straights 9x9](https://prodimage.images-bn.com/pimages/9781727117554_p0_v2_s600x595.jpg)
Barnes and Noble
400 Straights Puzzles: Hard to Very Hard Straights 9x9
Current price: $10.99
Size: OS
Loading Inventory...
*Product information may vary - to confirm product availability, pricing, shipping and return information please contact Barnes and Noble
Straights is a logic puzzle, invented by Jeff Widderich (Canada). It is a grid, partially divided by black cells into compartments. Each compartment, vertically or horizontally, must contain a straight - a set of consecutive numbers, but in any order (for example: 2-1-3-4). The aim is to fill all white cells with the numbers from 1 to N (where N is the size of the grid). No single number can repeat in any row or column. Clues in black cells remove that number as an option in that row and column, and are not part of any straight.