IL Donation

These shapes only leave one block after the T-spin. If you are familier with shachiku train or other SL donation, you may already know what can we do with them.

Col 4 and col 5 are always open after the T-spin which makes them fit in with 6-3/5-4 stacking.

Note that sometimes you can build the same shape with JO or JS.

5-4 Stacking

Since it only leaves one block, you can actually use it anytime as long as it doesn't create a blocked single hole.

Avoid this:

If the block is beside the wall, it is possible to fix it with another donation:

6-3 Stacking

Build parapet using this shape.

Avoid this unless you are going for a TST:

Avoid this:

???:

Create overhang

Use the remain block as the overhang. Some examples:

Find I by extending TST overhang

A method to cleanup TST overhang.

Spin the S in after stacking other parts:

Find I by doing a flat donation

IS and IO variants

These are also floating I donation.

T-spin Fin

The block left by L creates a perfect situation for the STMB cave.

If the width is wider, you can also build this: