Donation

Donating is a method of "plugging" up the Tetris hole to send a T-Spin. After the T-Spin, the Tetris hole is opened up once again to allow the continuation of Tetris or downstacking.

Natural Donations
These donations preserve the back-to-back bonus.

S Donation

Z Donation

ZS Donation

J Donation

J Donation 2

O Donation

O Donation 2

LS Donation

LZ Donation

IJ Donation

JZ Donation

T Donation

S Donation 2

Other Examples
These examples break the back-to-back bonus.

Example 1

Example 2

Example 3

Although the Donating technique is mostly used over Tetris holes, it is also possible to use it to cover up T-Spin holes and open them up at a later point. This example is taken from a real multiplayer game. The player is utilizing the donating technique to the extreme, setting up 3 T-spin doubles before the original T-Spin hole is revealed again.

T-Spin Single Donations
S Donation

A case where an S donation does not work:

Z Donation

J Donation

L Donation I Donation