Perfect Clear

Related terms

• Tetris →

  Four rows cleared by one placement, normally using a vertical I. The name also refers to the game itself. A Tetris can leave many blocks behind, while a Perfect Clear leaves none.

• Perfect Clear Opener →

  A starting construction aimed at a four-line Perfect Clear. Its finishing pieces depend on the second bag and hold. If the finish is unavailable, switch to a continuation instead of forcing an impossible empty board.

• Freeplay →

  The continuous mode under Perfect Clear. Its coach tries to return the board to empty repeatedly, and the PC counter records completed Perfect Clears. It is not restricted to the PCO opening pattern.