Where do the window boards come from?

Smash the round table with the hammer.

Is the window enough?

No. Push the bookcase against the right door and cover the large left-wall crack as well.

After the computer shows WIN, the large zombie breaks through the left wall; press the red Face Off button.

Brain Puzzle: Tricky Quest level guide

hard

Seal the strange parcel, smash the table into boards, barricade the window and door, then survive the boss zombie's entry.

If the player asks you to sign in, open the video on YouTube instead.

Seal the yellow delivery box with tape.
Smash the round table with the hammer.
Nail the resulting boards across the window.
Push the tall bookcase in front of the right-hand door and pull the red wall covering across the large left crack.
Tap the spider web and floor pests until they disappear, then switch on the desk computer until its screen reads WIN.
When the high-level zombie breaks through the left wall, press the red Face Off button to start the prepared defense and drive it out.

Board notes 5 details

Layout: A man is trapped among a taped parcel, hammer, table, damaged window and door, insects, computer, and covered sofa while zombies gather outside.
Goal: Close every breach and prepare the final defense before the high-level zombie enters.
Opening: Tape the yellow package shut and break the round table into boards.
Danger Zone: Boarding only the window leaves the damaged door and other weak points open.
Mechanics: Furniture and tools convert into barricade materials before a final face-off phase.

Where do the window boards come from?
Smash the round table with the hammer.
Is the window enough?
No. Push the bookcase against the right door and cover the large left-wall crack as well.
What is the final phase?
After the computer shows WIN, the large zombie breaks through the left wall; press the red Face Off button.