Rotate and stack the falling pieces. Fill a full row to clear it before the well fills up.
A piece made of four connected blocks falls from the top of the well. Move it left or right, rotate it, and either let it fall naturally or drop it faster. When an entire horizontal row is completely filled with blocks, that row clears and everything above shifts down.
Clearing multiple rows with a single piece scores far more than clearing them one at a time — a four-line clear is worth the most. Every ten lines you clear, the level goes up and pieces fall faster. The round ends when a new piece has nowhere to appear at the top of the well.
Keep your stack as flat and even as possible rather than building tall spikes in one column — a flat surface makes it much easier to clear lines. Save the long straight piece for clearing multiple lines at once when you can, since a four-line clear scores far more than four separate single-line clears. Rotate pieces before they land rather than after — last-second rotations near the bottom can fail if there's no room.
What are the seven piece shapes? The classic I, O, T, S, Z, J and L shapes, each made of four connected blocks.
How does the level system work? Every 10 lines cleared increases your level by one and speeds up how fast pieces fall.
What's the highest-scoring move? Clearing four lines at once with a single piece scores significantly more than clearing four lines one at a time.
The well is six columns wide. Move with left/right, rotate with Up, use Down for a faster fall and Space for a hard drop; the on-screen controls provide the same main actions. Before dropping, inspect both the spaces a piece fills and the empty cells it will cover. A piece that flattens the surface can still bury a hole, making a later line much harder to complete.
Suppose the bottom two rows each have an aligned two-cell gap, with a clear vertical path above those gaps. The square O piece can fill both gaps and complete the two rows in one placement. At level one, a two-line clear adds three hundred line-clear points, compared with one hundred for a single line. Hard-drop distance can add separate points, so the total change may be larger.
Every ten cleared lines raises the level and increases falling speed. A four-line clear is valuable, but keeping a deep well open indefinitely can become dangerous when the straight piece does not arrive. The run ends when a new piece cannot enter the top.
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