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

J Donation

O Donation

O Donation 2

LS Donation

IJ Donation

JZ Donation

T Donation

S Donation 2

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

Example 1

Example 2

T-Spin Single Donations
S Donation

A case where S donation does not work:

Z Donation

J Donation

L Donation I Donation