Brain Test 1 Level 213
We must fill all of the grids in the factory
You should first fill all grids which have number 1, then slide to number 2 and then number 4.
Follow the screen sequence
Use the images as a compact replay of the solving path. The text below each frame explains what should change.
Video walkthrough
Same number in other versions
Brain Test versions can reuse the same level number with a different puzzle. If the screenshot or question does not match your game, switch to the same number in another version or use the nearby level links.
Strategy guide
- 1.Start by identifying and filling every grid marked with number 1 before moving on;
- 2.After all 1s are filled, slide to activate number 2 grids and fill those completely;
- 3.Finally, slide again to access number 4 grids and complete them to finish the level.
Common mistakes
- 1.Trying to fill grids randomly without following the numbered sequence order;
- 2.Filling number 2 or 4 grids before completing all number 1 grids first;
- 3.Overlooking that you must slide between numbers after completing each set.
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