How do I pay the bandit in Brain Riddle Tricky Box Level 17?

Bring the hidden treasure down and drag its blue diamond into the bandit's demand bubble.

Do I need to collect all the falling coins?

No. They lower the total only slightly and mainly distract you from the valuable object above.

It comes from the living treasure pile on the narrow platform high above the bandit.

Brain Riddle: Tricky Box level guide

expert 4 colors

Reveal the treasure platform above the gray bandit, knock its riches down, and drag the blue diamond into his demand bubble to clear the right door.

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Collect a few falling coins to expose how little each one subtracts from the bandit's total.
Move beside the gray guard and jump high enough for the camera to scroll upward.
Reach the narrow green platform holding the coin-covered treasure character.
Bump the treasure pile off the platform and follow it down to ground level.
Drag the large blue diamond from the fallen treasure into the bandit's numbered thought bubble.
Wait for the 10,000-value payment to clear his demand and send him walking away.
Move past the treasure and enter the pink door on the far right.

Colors in this level:

Gray, Gold, Blue, Pink

Trying to satisfy the entire demand with one- and five-value falling coins.
Staying at ground level and never revealing the treasure platform above the guard.
Leaving the blue diamond beside the treasure instead of placing it in the thought bubble.

Board notes 5 details

Layout: Boxy starts at the left door as small coins fall across the scene. A gray bandit guards the right door with a demand near 10,000 coins, while a treasure pile and blue diamond are hidden on a green platform above him.
Goal: Bring down the hidden treasure, use its diamond as one high-value payment, and pass through the door the bandit abandons.
Opening: Catching a few falling coins proves that they reduce the demand only in tiny increments; the useful route is upward beside the guard.
Danger Zone: Grinding the falling coins cannot efficiently cover the demand, and the diamond does nothing until it is dragged into the numbered thought bubble.
Mechanics: Vertical camera scrolling reveals offscreen treasure, and a scene object can be delivered directly into an NPC's numeric request.

How do I pay the bandit in Brain Riddle Tricky Box Level 17?
Bring the hidden treasure down and drag its blue diamond into the bandit's demand bubble.
Do I need to collect all the falling coins?
No. They lower the total only slightly and mainly distract you from the valuable object above.
Where is the blue diamond?
It comes from the living treasure pile on the narrow platform high above the bandit.