TETRIS GLOSSARY
TKI
Also called Opening TSD
A first-bag TSD opener commonly enabled by an early I. It leaves a low board with flexible continuations. Here TKI means the opening Double; some communities use the same name for C-Spin.
View in the A–Z glossary →T-spin Double. Colored cells show the first-stage reference, not placement order. Later bags, clears and alternative routes are not shown.