Brain Test 4 Level 345
Solve the puzzle Answer
Drag a “Y” from the middle box to the “X” in the top left square of the right box. Now, drag the right box to the ? mark.

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, drag the 'Y' from the middle box to the 'X' located in the top left square of the right box;
- 2.After placing the 'Y' on the 'X', drag the entire right box (now containing 'XY') to the ? mark;
- 3.The solution creates 'XY' in the right box, which is then moved to the ? to form 'XY?' as the answer.
Common mistakes
- 1.Trying to drag the entire right box directly to the ? mark without first moving the 'Y' to the 'X';
- 2.Attempting to drag the 'Y' from the middle box to the ? mark instead of to the 'X' in the right box;
- 3.Overlooking that the 'Y' must be placed on the 'X' in the top left square of the right box before moving the box.
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