How should the two blue 45 nests in Level 571 be tracked?

They are separate fresh taps; follow each blue card in its own slot through the observed paired remainder chains.

What is the last visible Level 571 remainder?

A red card falls through 15, 6, and 4 before the picture frame is empty.

Food Hunt: Pixel Puzzle level guide

hard 10 colors

Drain the quail's two blue 45 families, wait through the paired active remainders, and leave room for the red 15/6/4 tail.

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Fresh-tap blue 45 into the first lane and watch its active remainder pass 43/39/35/32.
Fresh-tap the second blue 45 into the next open lane; the paired active cards read 28/42, 24/38, 20/34, 16/30, and 12/26.
Wait for a blue lane to empty before fresh-tapping white 56, cyan 13, or cyan 15; a tray value is an active remainder only after its nest has entered a slot.
Stagger the next blue 50/55 families with white and cyan remainders as the blue field and white loops recede.
Leave a lane for red 20/16/11/4, purple 6/4, and orange 21/13/7 details as the quail body and nameplate expose.
Keep black, white, cyan, and purple separated around the beak and QUAIL sign rather than filling every lane with a large background group.
Wait through the last red active remainder 15, then 6, then 4; the picture frame becomes empty.

Colors in this level:

Blue, White, Cyan, Purple, Red, Orange, Black, Gray, Beige, Brown

Treating the second blue 45 as a continuation of the first card instead of a fresh nest with its own active remainder.
Admitting white 56 or cyan 13/15 while both blue chains still occupy the tray.

Board notes 5 details

Layout: A purple, orange, and reddish quail sits on a blue field with white and cyan loops and a black-and-white QUAIL nameplate; five tray slots are open.
Goal: Remove the blue field, white and cyan loops, bird colors, and nameplate until the last separated red pixels leave an empty picture frame.
Opening: Fresh-tap blue 45 twice; the two active chains visibly pass 43/39/35/32 and 28/42, 24/38, 20/34, 16/30, 12/26.
Danger Zone: White 56, cyan 13/15, and later blue 50/55 groups can fill the tray while small red, purple, orange, or black quail details remain covered.
Mechanics: Two identical blue 45 fresh nests enter close together; their falling values are separate active-tray remainders in five ordinary slots.

How should the two blue 45 nests in Level 571 be tracked?
They are separate fresh taps; follow each blue card in its own slot through the observed paired remainder chains.
What is the last visible Level 571 remainder?
A red card falls through 15, 6, and 4 before the picture frame is empty.