Sliding Numbers

This is a western ancient puzzles . The new mode of puzzles will give you simple picture and freshness . In the 3*3 (4*4/5*5/6*6) squares , you can see 8 (15/24/35) numbers which very clear . Every numbers have a squares , but it will left a squares which has no number and you can move other numbers . According to numbers's sequence from small to large , and up to down , you need to move 8 (15/24/35) numbers correct that means you pass . Think of a way to sort well , when you finish one puzzles , it will enter to next puzzles which more and more complicated.