Brain Test 3 Level 12
Great Yet another door
Drag the hammer to the rock to break it. Then drag the small stone to the slingshot and drag the slingshot to the lock symbol above the door.

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.First break the rock with the hammer to reveal the small stone;
- 2.Load the slingshot with the small stone before aiming at the lock;
- 3.Follow the sequence: hammer→rock, stone→slingshot, slingshot→lock.
Common mistakes
- 1.Trying to use the hammer directly on the door lock instead of breaking the rock first;
- 2.Attempting to use the small stone without breaking the rock to access it;
- 3.Dragging the slingshot without loading it with the small stone first.
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