ConSlide puzzles on the web are a redesigned type of sliding block puzzles invented by M. Oskar van Deventer.
The objective of the ConSlide puzzle is to move the red block marked with a “1” to the upper left corner by moving the pieces just like regular sliding block puzzles, but some of the pieces are connected by bars of different heights. This means pieces can pass over or under one another as long as the bars and posts do not run into each other.
The complete set of rules you can find at the website where you can find a web-based version of ConSlide. This website will give you hours of puzzle pleasure. Happy Puzzling!