How to Play

The rules

The board is an empty 8×8 grid. Below it you always hold up to three block shapes.
Place a shape on any area of free cells — shapes never rotate, so plan around the form you are given.
Fill an entire row or column and it clears instantly, freeing the space again.
When all three shapes have been placed, a new set of three appears.
The game ends when none of the shapes in your tray fits anywhere on the board.

Controls

Drag a shape from the tray onto the board — it follows your pointer and snaps to the squares it will occupy.
Or tap a shape to pick it up (tap again to put it back), then tap a board cell to drop it there.
The piece shrinks over a spot where it does not fit, showing the red outline underneath.
Rows and columns your drop would complete light up in gold before you let go.
On a phone, hold and slide across the board — the piece rides two squares above your finger so nothing is hidden; lift to place. Slide just below the board to reach the bottom rows.
Hint highlights the strongest available placement — you get 3 per game.

Scoring

1 point for every cell you place.
10 × n² points when you clear n lines in a single move — two at once is worth 40, three is worth 90.
Combo bonus — clearing lines on consecutive moves adds 5 × combo × lines on top. One move without a clear resets the combo.

Difficulty

Easy — small, forgiving shapes only: singles, short bars, 2×2 squares and corners.
Medium — the full classic set, including L, J, T, S and Z shapes.
Hard — no single cells to patch holes with, plus 5-long bars, 3×3 blocks and plus shapes.

History of Block Puzzles

Fitting shapes into a grid is one of the oldest ideas in recreational mathematics. The shapes used here are polyominoes — figures made of squares joined edge to edge — a term coined by mathematician Solomon Golomb in 1953, though puzzles of this kind were sold in Victorian England decades earlier.

The genre reached the screen in 1984, when Alexey Pajitnov built a falling-block puzzle on an Electronika 60 in Moscow and set off a worldwide craze for line clearing. Everything that followed borrowed its central pleasure: an awkward shape sliding into exactly the right gap.

The calmer, turn-based variant you are playing here became a mobile genre of its own in the 2010s with games such as 1010! (2014), which traded the falling timer for a quiet tray of three shapes. Freed from reaction speed, the puzzle turned into a game of space management — and has stayed one of the most played casual formats ever since.

Tips & Fun Facts

Strategy

Work from the edges inward. Blocks pushed against a wall leave fewer awkward single-cell gaps than blocks dropped in the middle.
Protect open space. Keeping one clear 3×3 area is worth more than clearing one extra line, because it guarantees any shape can land.
Never place a shape that creates a lone hole you cannot fill — on Hard there are no 1×1 blocks to rescue you.
Look at all three shapes before moving. A long bar left for last often has nowhere to go.
Hunt for double clears. A row and a column that cross each other are worth 40 instead of 20, and they start a combo chain.
Chain your combos. Clearing on three moves in a row is worth far more than three separate clears, so set up the next clear before taking the current one.

Did you know?

There are exactly 5 free tetrominoes (4-cell shapes) and 12 free pentominoes (5-cell shapes) — the classic building blocks of every block puzzle.
Deciding whether a given set of polyominoes can tile a region is NP-complete, which is why no simple rule tells you the perfect move.
An 8×8 board holds 64 cells, so a perfect run never needs more than 16 four-cell shapes on the board at once.
Because shapes here never rotate, the puzzle is strictly harder than it looks — the same L shape pointing a different way is treated as a different piece.