Missing Piece 05 | Adam's Venture 1 : The Search for the Lost Garden

At top or at side you see a 10 or X, so the row and column of squares should total 10.

Use the arrows keys to select a number and scroll through the numbers using the arrow keys.

Arrange the squares to total 10.

The stand opens and the first missing puzzle part (5/7) is obtained.

Find the Sound Belief secret:  
Go forward pass the ledge that goes right to left.
At the turn to go down, go left where the plants are located.
Go forward.
Inspect the chest by the right wall to see Day 6 code: image.