A Perfect Clear (PC) means having no filled cells left after a line clear. The Tetris guideline rewards such an occurrence. Usually, a PC sends 10 lines in multiplayer (whereas most games will not send additional lines from combos, T-Spins and clearing multiple lines at once). Perfect Clears can only be achieved after a minimum of 4 cleared lines at the start and they can only appear after an even amount of cleared lines, if no garbage is received.
PC Opener[]
There is one basic setup that is used to start the game with a Perfect Clear:
Note that getting a Perfect Clear is not guaranteed with this setup. The chances just lie around 61.2 % (the chances can be increased a little by leaving the first I piece on hold). 3 of the first 4 pieces of the second bag are used to complete the 4 lines in one of the following ways:
