Tetris Online. Blocks Sliding Tetriz. Original variant of the Tetris game with two levels of difficulty. Drag the blocks moving them from right to left along the same horizontal so that the space between them can be eliminated. Each horizontal line that you manage to complete disappears and the pieces that are on top will descend one position. In this way, space will be freed on the board, which will facilitate the placement of the new pieces that are generated from the bottom. The game of Tetris ends when the pieces are stacked on top of each other to prevent the generation of new ones. Accumulate points by keeping the Tetris game active.