Str8ts game info
The goal of Str8ts is to fill in the white cells of the grid with numbers, while forming straights. Row and columns are divided into compartments by black cells. You don't have to fill in any numbers in the black cells.
A single number can only occur once in every column and row. If there is a number already filled in into a black cell, then this eliminates that number for that specific row and column.
A straight is a series of ascending and descending numbers. Beware, this does not have to be strictly ascending or descending. Both of the provided examples are valid streets:
These straights are to be formed in the compartments, meaning a horizontal or vertical group of white cells that are not divided by black cells.
First, try to fill in the numbers you are absolutely sure of. The more the grid gets filled, the easier it gets.
The first time you fill in a number, it will be displayed in a small font in the corner of the cell. You did not fill in this number officially yet, therefore you have to click on the number again. You can put several small numbers in a single cell. Definitely try this when you are in doubt between 2 or 3 numbers for a single cell.
If you click on the question mark at the left, all the numbers you filled in will be checked on errors.
An additional tip to fill in the grid quickly is to use the arrows keyboard of your computer to navigate the cells. You can fill in the numbers by typing them.
In the beginning of the game, you can choose between 3 difficulty levels. These differ in how many black cells there are and how many numbers that are already filled in. The Daily Str8ts you can download provides all 3 difficulty levels.
Str8ts was invented and pitched by Jeff Widderich on Dragon's Den, which back then was a well-known Canadian TV-show that made the game famous. In cooperation with Andrew Stuart, a puzzle maker and programmer, the game got fully worked out and new levels could be created automatically.
If you like to tease your brain with numbers, definitely try out an absolute classic in the field: Sudoku.