Note: Our level rating system is different than Hanayama's. Hanayama's level 1 is equivalent to our level 5.... level 6 is equivalent to our level 10.
Using the grooves, slide the protrusions and attempt to complete this very complicated puzzle. The asymmetrical design will mesmerize you and challenge your memory. The movement is definitely a twist. The theme for this puzzle is tangle. It was designed by Oskar van Deventer from the Netherlands.
Here is a link to the production of the Cast Twist for all those who are interested.