str8ts in a sentence

1. As Str8ts belongs to the same class of puzzles as Sudoku the puzzle can demonstrate a wide spectrum of relative difficulty.
2. Whereas Sudoku has the additional constraint of 3x3 " boxes ", in Str8ts rows and columns are divided by additional clues are set in some of the black cells  these numbers remove that digit as an option in the row and column.
3. It's difficult to find str8ts in a sentence.