Pentas: Stratum

Select bricks of the shown figure shape (any rotated/mirrored version) to remove it from field. Clear bricks to open new level bricks. The only same level bricks could be destroyed at one time. Try to keep free space for new elements as long as possible. Challenge other gamers in pursuit of highscore. 选择如图所示的形状（任何旋转/镜像版本）的砖从现场移除。清除砖块，打开新的台阶砖。唯一的同一水平砖块可以在同一时间被破坏。尽量保持自由空间，新的元素尽可能长的时间。 挑战追求高分的其他玩家。