Brain Test 2 Quest for Brainiac Level 13 They must open that door

By Emir Lajev /
Question
They must open that door.
Hints
Hint 1:
Look at the colors around the door carefully.
Step 1
Answer
Pick the gems on the ground and put them in the empty spots above the door in this order from left to right: Blue, blue, yellow and green. Now tap on the door.

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