...until you can position the next piece Green/White next to the Green/Blue piece as shown. This piece actually belongs below ... ...til you can position the next piece White/Yellow next to the White/Green piece as shown. This piece actually belongs below the White/Green piece also shown and this followi... ... the last piece Yellow/Blue next to the Yellow/White piece as shown. This piece actually belongs below the Yellow/Blue piece also shown and this following procedure will move it there. That's it, t...