Brain Test Level 656: Unlock the big chest.
Brain Test Level 656
Screenshots

Quick Answer
Drag the key to the small chest to unlock it, then drag the blue gem found inside to the big chest to open it.
Skills Tested
Step-by-Step Solution
- 1) See the big locked chest and the key.
- 2) Drag the key to the small chest.
- 3) Open the small chest to find the blue gem.
- 4) Drag the gem to the big chest to open it.
Hint
Reveal a hint
Open the small chest first to find the real key.
Why It Works
The big chest cannot be opened with the visible key alone. Using the key on the small chest unlocks it and yields the blue gem, which is what actually opens the big chest.
Frequently asked questions
How do I unlock the big chest in Brain Test level 656?
Use the key on the small chest to find the blue gem, then drag that gem to the big chest.
What is the answer to Brain Test level 656?
Open the small chest with the key, and use the blue gem inside it to unlock the big chest.
Why open the small chest first in Brain Test level 656?
The blue gem hidden inside it is the real key to the big chest.
What is the trick in Brain Test level 656?
The trick is following the key to the small chest to obtain the gem that opens the big one.
How do I open the big chest in Brain Test level 656?
Drag the blue gem from the small chest onto the big chest to unlock it.
Is there a video walkthrough for Brain Test level 656?
Yes, the embedded video shows the gem opening the big chest.