The rules of Linetris are the same as for Line4 and bring one refreshing feature to this game. If the bottom row of the board (marked by blue color) fully occupied by pieces, all pieces of this row disappear and the rest of the board is shifted one row down. The similarity with the popular game Tetris gave a name of this variation.
Other important rules
If the player places a piece and entirely fills the bottom row by this move but he/she also places four or move pieces in the solid row, the rule of disappeared row and shifted board is not applied and the player wins the game.