Block Puzzle
Play a free Tetris-style block puzzle in your browser. Move and rotate the falling blocks to complete and clear lines, level up as you go, and chase a high score. Ghost piece, next-piece preview, and full keyboard and touch controls. No download, no signup.
←/→ move · ↑ or X rotate · ↓ soft drop · Space hard drop · P pause.
How to Play Block Puzzle
- 1Blocks fall from the top — move and rotate them as they drop.
- 2Fit each block to fill rows with no gaps.
- 3A completed row clears and scores points.
- 4Clear more lines to level up — but the blocks fall faster.
The Seven Shapes
Every block is a tetromino — a shape made of four squares — and there are exactly seven of them, traditionally named after the letters they resemble: I, O, T, S, Z, J, and L. Each has its own colour and its own rotation behaviour. Learning how each piece fits is the heart of the game: the flat I-piece is perfect for clearing four rows at once, the O never rotates, and the awkward S and Z pieces are the ones that most often leave holes if you place them carelessly.
Our version uses a 7-bag randomiser, which shuffles all seven pieces and deals them before reshuffling. That means you never suffer a long, unfair drought of the piece you need — every seven drops you are guaranteed to see each shape once, exactly as in the modern standard.
Strategy: Keep the Stack Flat
The golden rule of block stacking is to keep your surface as flat and gap-free as possible. A flat stack accepts almost any incoming piece, while a jagged one forces awkward placements that create buried holes — and a hole you cannot fill will haunt you until you clear the rows above it. Place S, Z, and L/J pieces thoughtfully, and resist the urge to stack high in the middle. Use the ghost piece to line up each drop precisely.
Going for the Tetris
Because clearing four lines at once (a “Tetris”) scores far more than clearing rows one at a time, advanced players deliberately build up nine of the ten columns and leave a single empty column on one side, waiting for a vertical I-piece to drop in and clear four rows in one strike. It is a higher-risk, higher-reward approach — if the I-piece is slow to arrive your stack climbs dangerously — but it is the fastest way to a top score once you can manage the flat build.
Tips for a Higher Score
Keep it flat
A level surface accepts any piece. Avoid tall towers and deep single-column wells (except a deliberate Tetris well).
Don't bury holes
A covered gap costs you every row above it. Place S and Z pieces carefully to avoid creating one.
Use the ghost
The faint outline shows exactly where a piece lands. Line up precisely before you drop.
Watch the next piece
Plan your current placement around the piece coming up so the two fit together cleanly.
Save an I-piece well
For big scores, leave one column open and clear four rows at once when the I-piece arrives.
Hard-drop with care
The space bar is fast but final. Use soft drop when you still need to nudge a piece into place.
Frequently Asked Questions
How do you play the block puzzle?
Blocks made of four squares (the seven classic tetromino shapes) fall one at a time from the top of the board. You move and rotate each block as it descends to fit it neatly with the blocks already stacked below. When you completely fill a horizontal row with no gaps, that row clears and everything above drops down, earning you points. The game ends when the stack reaches the top and a new block can no longer enter.
What are the controls?
On a keyboard, use the left and right arrows to move, the up arrow or X to rotate, the down arrow to soft-drop (descend faster), the space bar to hard-drop (slam the piece straight down), and P to pause. On a touchscreen, use the on-screen buttons below the board for move, rotate, soft drop, and a dedicated hard-drop button.
What is the ghost piece?
The ghost piece is the faint outline shown at the bottom of the board directly beneath your current block. It marks exactly where the block will land if you hard-drop it right now. It is a big help for lining up pieces precisely, especially at higher speeds — you can see the landing spot without having to judge it by eye.
How does scoring and levelling work?
You score by clearing lines, and clearing several rows at once is worth far more per line — clearing four rows in a single move (a "Tetris") is the biggest reward. Every ten lines you clear raises the level, which speeds up how fast the blocks fall. Higher levels mean higher pressure but also more points, so pushing the level is how you chase a big score.
Is this the same as Tetris?
It is an independent, free block-stacking game built in the same falling-tetromino tradition that Tetris made famous. It uses the seven standard four-square shapes, line clears, a next-piece preview, a ghost piece, and increasing speed. It is not affiliated with or endorsed by the official Tetris brand — it is our own browser implementation of the classic block-puzzle format.
Is it free and does it work on mobile?
Yes. The game is completely free with no signup and no ads interrupting play, and it runs entirely in your browser, so it works offline once loaded. Full on-screen touch controls make it fully playable on phones and tablets, and your best score is saved locally in your browser.
Want to score higher? Read our guide on block puzzle (Tetris) strategy.