From your first Tetris clear to maximising level multipliers
Tetris uses exactly seven distinct pieces, called tetrominoes — each made of exactly four squares. Understanding each piece's shape and how it rotates is fundamental to good play.
| Name | Shape | Best Use |
|---|---|---|
| I-piece | ████ | 4-line Tetris clears; filling the right-side well |
| O-piece | 2×2 square | Flat stacking; no rotation needed |
| T-piece | T-shape | Filling corners; T-spin setups (advanced) |
| S-piece | S-zigzag | Use carefully — creates uneven surfaces |
| Z-piece | Z-zigzag | Mirror of S; same caveats apply |
| L-piece | L-shape | Filling right overhangs; flat column building |
| J-piece | J-shape | Mirror of L; filling left overhangs |
The most important piece to learn to manage is the I-piece. It is the only piece that can clear 4 rows simultaneously (the maximum), which earns the most points — especially with a level multiplier. Many experienced players keep a single-column well on the far right side of the stack specifically to drop the I-piece vertically for a 4-line Tetris clear.
Points are awarded based on how many rows you clear at once, multiplied by your current level:
| Lines Cleared | Base Points | At Level 5 | Name |
|---|---|---|---|
| 1 (Single) | 100 | 500 | Single |
| 2 (Double) | 200 | 1,000 | Double |
| 3 (Triple) | 300 | 1,500 | Triple |
| 4 (Tetris) | 400 | 2,000 | Tetris! |
Notice that clearing 4 lines (Tetris) earns 4× the points of 1 line — the same ratio. But at Level 5, every clear earns 5× the base. This is why the level multiplier changes the game dramatically: clearing Tetrises at high levels earns enormous point totals compared to single clears. Prioritise reaching high levels before your stack becomes unmanageable.
An uneven surface makes it much harder to place future pieces without creating holes. After every placement, mentally check whether the new surface is flat. Avoid spikes (single columns much taller than neighbours) — they are almost impossible to fill cleanly later.
A hole is an empty cell with at least one filled cell directly above it. You cannot clear a row containing a hole without first clearing every row above the hole — which may be 5, 10, or more rows. A single deeply-buried hole can ruin an entire game. Treat hole avoidance as a hard rule, not a guideline.
The higher your stack, the fewer pieces you can place before game over. Aim to keep the stack below the midpoint of the board. If it approaches the top third, prioritise clearing lines over setting up Tetrises.
Leave column 10 (rightmost) empty as you build the stack from left to right. This creates a vertical well that perfectly accepts I-pieces. Whenever an I-piece appears, drop it into the well for a 4-line Tetris. This is the most reliable way to score Tetrises consistently.
S and Z pieces are the most dangerous tetrominoes. They create uneven surfaces no matter how you place them. When S and Z pieces appear, find the flattest possible placement and accept that the surface will be slightly bumpy. Compensate with the next L, J, or T piece.
Every 10 lines cleared bumps you to the next level, and each level increases piece fall speed. On higher difficulty starts (Level 3 or Level 5), pieces begin fast. Key speed milestones:
Use the hard drop (Space) key to place pieces instantly. At high levels, soft-dropping wastes reaction time and gives the piece less time to be positioned. Hard-drop into position the moment you know where the piece should go.
Rotate pieces while they are near the top of the screen, not while they are about to land. At high speeds, the window for rotation disappears as pieces hit the stack. Decide on orientation and positioning early in each piece's descent.
Always be aware of what the next pieces will be (the preview panel shows upcoming pieces). Plan where the current piece goes based on what's coming next. For example, if you know an I-piece is next, you can place the current piece in a way that leaves the right-side well open for the Tetris.
If your stack reaches the danger zone (top third of the board): stop going for Tetrises, clear single or double lines immediately, and work the stack down. Scoring 100–200 points per move while surviving is better than aiming for 400-point Tetrises and losing. Survive first, score second.
The fastest route to high scores: start on Level 5, maintain the right-side well, clear Tetrises every 4 lines, and survive past Level 10. At Level 10, a single Tetris clear scores 4,000 points. Ten Tetrises at Level 10 = 40,000 points in roughly 3 minutes of play.
Apply these techniques in a real game!
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