An Explosive Hint

I'm at level 130 and I figured out about 15 levels ago a nifty aspect of the game. In the help instructions, when I started the game it said something about explosive items next to each other. I didn't really pay to much attention until I decided to try it. If two explosive items are right next to each other: side by side or top and bottom, slide one over the other and it will take out a whole row or column, depending on If you go up and down, or side to side. I just thought I'd throw that out to you guys because you might find it helpful. These game blogs always help me so I thought I'd return the favor.

i've seen this. it's really helpful in the digging in the cave levels too.