Planning ahead
Shift Lab
Move the marker around the lab and push every block onto a target. Blocks can only be pushed, never pulled, so one careless push into a corner can make a level unsolvable.
Free in the browser, no account needed.
Rules
- Move up, down, left or right. Walking into a block pushes it one cell.
- You can push only one block at a time and never pull.
- Arrow tiles can only be entered in the direction of the arrow.
- Place a block on every target to solve the level.
- A block pushed into a dead corner is stuck: undo when you see the warning.
How to play, step by step
- Move. Walk around with the arrow keys or by swiping.
- Push. Walk into a block to push it. You cannot pull it back.
- Targets. Get every block onto a target. A block on a target turns solid.
Controls
- Arrow keys or WASD to move
- Swipe or use the on-screen pad on touch screens
- Z to undo, R to restart
Difficulty and levels
Each difficulty starts with hand-made lab levels, then continues with generated ones. Difficulty is rated by the length of the real solution, not by the number of blocks.
Shift Lab: frequently asked questions
- Is Shift Lab free to play?
- Yes. Shift Lab is free in the browser with no account, no download and no ads. Your progress is saved on your device.
- How do you play Shift Lab?
- Move up, down, left or right. Walking into a block pushes it one cell. You can push only one block at a time and never pull. Arrow tiles can only be entered in the direction of the arrow. Place a block on every target to solve the level. A block pushed into a dead corner is stuck: undo when you see the warning.
- How do the levels and difficulty work in Shift Lab?
- Each difficulty starts with hand-made lab levels, then continues with generated ones. Difficulty is rated by the length of the real solution, not by the number of blocks.
- Can I play Shift Lab on my phone or tablet?
- Yes. Shift Lab works in any modern browser on phones, tablets and computers, with touch, mouse and keyboard controls.
- Is there a daily Shift Lab puzzle?
- Yes. Every day there is a new daily puzzle, the same for every player, alongside unlimited numbered levels.
More puzzles in Axiom
Axiom MergeSlide, merge, charge and set off chain reactions.
Block ArchitectFit polyomino pieces into a shaped board.
Circuit FlowRotate tiles until every lamp is lit.
Logic GridReveal a hidden picture from number clues.
Axiom SudokuFill the grid so no digit repeats in a row, column or box.
Axiom MahjongMatch pairs of open tiles until the board is clear.
Axiom SpectrumPour colored layers until every tube holds one color.
Axiom TacticsFind the winning move in real chess positions.
Axiom Mind LabFive kinds of reasoning puzzles, each with a clear explanation.
Axiom Word SearchFind every hidden word in a grid of letters.
Axiom PathDraw one line through every cell, numbers in order.
Axiom DuoBalance suns and moons in every row and column.
Axiom DominoPlace every domino so each region meets its rule.
Axiom JamSlide each block out through the gate of its colour.
