Brain Test 1 Level 171
Poor crow is unable to eat the walnut
Take walnut up to the air and drop it on the stone to break it. Then feed crow.

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.Drag the walnut upward to simulate flying, then drop it onto the stone below;
- 2.Observe that the walnut breaks when dropped from height onto the hard stone surface;
- 3.After breaking the walnut, drag the pieces to feed the hungry crow.
Common mistakes
- 1.Trying to feed the crow the whole walnut without breaking it first;
- 2.Attempting to crack the walnut by tapping it on the screen repeatedly;
- 3.Dragging the walnut to the crow instead of using the stone to break it.
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