When does the fifth slot open in Level 573?

The source shows the fifth square crossed through the four-slot opening and as an ordinary lane around the 2:45 point.

What are the last Level 573 remainders?

The green head residue is shown at 37, then 16, then 2 before the explicit Level Complete screen.

Food Hunt: Pixel Puzzle level guide

hard 11 colors

Manage the four-slot teal 60 opening under the 1700 art counter, wait for the fifth lane near 2:45, and preserve the green 37/16/2 tail.

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Fresh-tap teal 60 into the first lane; the active remainder visibly passes 59/57/55 while the fifth square is still crossed.
Fresh-tap charcoal 35, white 40, and the next teal 60 only as one of the four usable lanes leaves; keep teal 44/40 and charcoal 38 in the queue until room exists.
Wait through the outer field wave, including teal 58/44/36/25, blue 47/33/18/9, and the later blue 72/68 families. These are active remainders after admission.
Across the iguana body and nameplate, stagger green 18/13/5, teal 29/27/24, white 48/26/4, and blue 17/8 while leaving room for red and black outline fragments.
Keep four-lane play until the crossed fifth square disappears around 2:45; only then admit the late fifth group, when five tray values such as 20/18/14/41/64 are visible.
As the board reduces to the green head, let the active green remainder fall 37, then 16, then 2; the empty frame and explicit Level Complete screen confirm the solved state.

Colors in this level:

Teal, Cyan, Blue, White, Gray, Charcoal, Black, Green, Red, Purple, Yellow

Counting the fixed 1700 picture number as an ant nest.
Planning a five-color wave before the crossed fifth square becomes a normal empty slot.

Board notes 5 details

Layout: A green red-eyed iguana sits in a blue water-like field with a white frame, dark teal border, and IGUANA nameplate; the picture carries a fixed 1700 counter.
Goal: Drain the blue, teal, white, gray, and green picture layers, then admit the late fifth-lane fragments until the iguana head and last green pixels leave the frame.
Opening: The first fresh teal 60 shows active values 59/57/55; charcoal 35, white 40, and the next teal 60 enter only as the four opening lanes release.
Danger Zone: The fifth slot is chained during the opening, so teal 60, blue 72/68, and white/gray families can occupy every usable lane while a small eye or outline fragment waits.
Mechanics: A crossed fifth slot remains closed until the chain disappears around 2:45; the fixed 1700 number is a picture counter and never enters the tray.

When does the fifth slot open in Level 573?
The source shows the fifth square crossed through the four-slot opening and as an ordinary lane around the 2:45 point.
What are the last Level 573 remainders?
The green head residue is shown at 37, then 16, then 2 before the explicit Level Complete screen.