Lesson 3: Skimming

Sometimes you have to keep blocks dangling in mid-air.

These combinations work well while waiting for the I block.

The same, but raising the 9th column without leaving holes. This general lay-out is very good to have since only the Z block won't fit.

Skimming to produce a flat stack.

The process can also be used with L and J on their sides. It's great to make room for an O block.

This technique can also be used with holes that are 2 columns wide.