Here's a hint....looks like 1 block of 4 in the center...but there's actually 2 4-blocks. The picture makes it look like 1 4 block with longer pieces on the side....but you actually put the longer pieces on the top and bottom of the 4-block........GEEZE, that THAT make sense?????? and yes, it WAS fun!!! Otherwise, I wouldn't have been up till midnight!!!! LOL