Tetris Blocks
A visual guide to the blocks used in this browser falling block puzzle, with neutral names, diagrams, rotations, line clear basics, and beginner tips.
| ID | Neutral name | Shape | Beginner note |
|---|---|---|---|
| I | Long | Best for long clears and open wells. | |
| O | Square | Stable, simple, and useful for flattening. | |
| T | Corner | Flexible for notches and small repairs. | |
| S | Left Zig | Useful on stepped surfaces. | |
| Z | Right Zig | Mirrors the other zig shape. | |
| J | Left Hook | Good for side pockets and ledges. | |
| L | Right Hook | Mirrors the other hook shape. |
How blocks create lines
Every block piece occupies four cells. When the piece locks into the board, those cells become part of the stack. A line clears only when every cell in that horizontal row is filled. The basic skill is placing each shape so it contributes to a future line without creating covered holes.
How pieces rotate
Each shape has up to four rotation states. The Square looks the same in every rotation, while the Long, Corner, Zig, and Hook shapes change orientation. The game uses simple wall adjustment so a rotation near the side of the board can still work when there is legal space nearby.
Beginner tips
Use Square pieces to stabilize uneven areas, keep a clean lane for Long pieces when chasing larger clears, and avoid placing Zig shapes where they create a buried gap. Hook pieces are good repair tools because they can cover ledges without making the surface too steep.
Frequently Asked Questions
How many Tetris blocks are used in this browser game?
The game uses seven familiar falling block piece IDs: I, O, T, S, Z, J, and L, with neutral UI names such as Long, Square, Corner, Zig, and Hook.
Do the blocks use official art?
No. The diagrams and visual themes are original browser assets and do not use official logos, screenshots, music, or branded artwork.
Is Tetris.eu.com an official Tetris website?
Tetris.eu.com is an independent browser-based block puzzle website. We are not affiliated with, endorsed by, or sponsored by The Tetris Company, Tetris Holding, or any official Tetris rights holder. Tetris is a trademark of its respective owner.