TETRIS GLOSSARY
APP
Also called Attack per piece
Attack divided by pieces placed. It describes attack efficiency: playing faster can raise APM without improving APP. Compare matches with the same attack rules.
View in the A–Z glossary →30 attack ÷ 40 pieces = 0.75 APPAttack efficiencyAttack divided by pieces
Illustrative numbers. Comparing results requires the same counting rules and timing conventions.