Super Shredder Future games

Many large jigsaw Super Shredder puzzles have redundancy in their cut pattern.

One puzzle solving strategy is the use of the picture on the box as a guide. Once the edge is completed and the location of a particular piece is discovered (in the picture Super Shredder Future games), it can be placed inside the overall puzzle at the approximate location it belongs. Done enough times and, eventually, interlocking the pieces will be possible.