STACKING LABBLOCK STACKING TRAINER
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TETRIS GLOSSARY

Combo

Also called REN · Combo chain

Successive pieces each clearing at least one line. A piece that clears nothing ends the chain. It is different from B2B: an ordinary Single can continue a combo while breaking B2B.

View in the A–Z glossary →
EVERY PLACEMENT MUST CLEAR
Single → Double → Single
Single → No clear → Single

Top: one continuous combo. Bottom: the non-clearing piece ends the chain; the next Single starts again.