What is Stairstep Sudoku

Stairstep Sudoku is another Sudoku variant and belongs in the category of the Jigsaw Sudokus (Sudokus with irregularly shaped regions). The staircase-shaped boundary of the regions is the only difference to the classic Sudoku. A Stairstep Sudoku is solved just like a classic Sudoku, but because of the different regions it is still a new challenge.