How do I get the first student inside?

Use the white car and an adult escort to make her look like a child being dropped off.

What distracts the guard?

The cat, dirt holes, tree, and beehive create the diversions used by later students.

The objective requires every late student to avoid the guard's active line of sight.

Brain Puzzle: Tricky Quest level guide

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Get each late student past the school guard by using the white car as cover and the cat, dirt holes, tree, and beehive as distractions.

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Put one student in the white car and use another as the adult escort.
Send the covered pair through the gate while the guard accepts the story.
Drag the white cat under the left tree into the upper-right dirt pit; the guard turns toward the running cat.
Move the front student through the gate while the guard is looking at that pit.
Drop the tree's yellow beehive beside the guard so he leaves his post to escape the bees.
Send the last waiting students through the unguarded entrance to complete the level.

Board notes 5 details

Layout: Late students queue beside a white car while a uniformed guard watches the school gate; a cat, tree, beehive, and loose-earth holes sit nearby.
Goal: Move every student through the gate without sending anyone directly through the guard's sight.
Opening: Hide one student in the car and escort her as a child being delivered to school.
Danger Zone: Advancing the waiting line while the guard faces it exposes the students.
Mechanics: Alternate cover stories with environmental distractions to move the queue in small groups.

How do I get the first student inside?
Use the white car and an adult escort to make her look like a child being dropped off.
What distracts the guard?
The cat, dirt holes, tree, and beehive create the diversions used by later students.
Why does direct entry fail?
The objective requires every late student to avoid the guard's active line of sight.