Challenge Your Mind With Rubik'S Brain Teaser Gridlock Puzzle. Unique Puzzle Game Inspired By The Classic Rubik’S Cube Mechanics With A Modern Twist For Enhanced Mental Engagement. Features Multiple Difficulty Levels To Challenge Various Age Groups And Skill Levels. Designed To Improve Your Problem-Solving And Intuition Skills. You Just Need To Draw A Challenge Card, Place The Starter Blocks, And Fit All Blocks On The Board. 0.. . ...