What area does the question mark represent?

It represents area 3 because the 39 fixed cells leave three cells on the 42-cell board.

Where does the r6c6=4 rectangle finish?

It finishes at r5c5:r6c6 as a 2x2 rectangle with area 4.

The complete partition has thirteen persistent rectangles, including the 3-cell unknown region.

MeowBlock! level guide

medium Target: 13 moves 13 colors

Solve MeowBlock! Level 22 by framing the lower rows first and reserving a 3-cell row for the unknown clue.

Anchor r5c1=4 and drag to r4c1, committing r4c1:r7c1 as a 4x1 rectangle with area 4.
Anchor r6c2=3 and drag to r5c2, committing r5c2:r7c2 as a 3x1 rectangle with area 3.
Anchor r6c3=3 and drag to r5c3, committing r5c3:r7c3 as a 3x1 rectangle with area 3.
Anchor r4c4=5 and drag to r4c2, committing r4c2:r4c6 as a 1x5 rectangle with area 5.
Anchor r7c5=? and drag to r7c4, committing r7c4:r7c6 as a 1x3 rectangle with area 3.
Anchor r5c4=2 and drag to r6c4, committing r5c4:r6c4 as a 2x1 rectangle with area 2.
Anchor r6c6=4 and drag to r5c5, committing r5c5:r6c6 as a 2x2 rectangle with area 4.
Anchor r2c6=3 and drag to r1c6, committing r1c6:r3c6 as a 3x1 rectangle with area 3.
Anchor r2c5=2 and drag to r1c5, committing r1c5:r2c5 as a 2x1 rectangle with area 2.
Anchor r3c3=4 and drag to r3c2, committing r3c2:r3c5 as a 1x4 rectangle with area 4.
Anchor r2c1=3 and drag to r1c1, committing r1c1:r3c1 as a 3x1 rectangle with area 3.
Anchor r1c2=2 and drag to r2c2, committing r1c2:r2c2 as a 2x1 rectangle with area 2.
Anchor r1c4=4 and drag to r2c3, committing r1c3:r2c4 as a 2x2 rectangle with area 4.

Colors in this level:

Violet, Green, Red, Purple, Orange, Blue, Yellow, Cyan, Pink, Mint, Lavender, Coral, Peach

Do not release r6c6=4 as r4c6:r7c6; the unknown clue needs r7c6.
Do not let the row-4 5-cell strip start at column 1; its verified bounds are r4c2:r4c6.
Do not treat the question mark as a free-form shape; it is exactly the 1x3 rectangle r7c4:r7c6.

Board notes 5 details

Layout: Full 7-row by 6-column board with 42 playable cells. Clues: r1c2=2, r1c4=4, r2c1=3, r2c5=2, r2c6=3, r3c3=4, r4c4=5, r5c1=4, r5c4=2, r6c2=3, r6c3=3, r6c6=4, r7c5=?.
Goal: Partition all 42 cells into thirteen rectangles. The fixed clues total 39, so r7c5=? resolves to area 3 at r7c4:r7c6.
Opening: Commit r5c1=4 as r4c1:r7c1, then r6c2=3 as r5c2:r7c2 and r6c3=3 as r5c3:r7c3. The lower-right 4 ultimately becomes r5c5:r6c6.
Danger Zone: The source briefly previews r4c6:r7c6 for r6c6=4; that steals r7c6 from the unknown 3-cell strip. Keep the row-4 5 and row-7 ? rectangles separate.
Mechanics: The question mark is an unknown rectangle area. It is inferred as 3 from 42 total cells minus the 39 fixed clue cells, then placed as a 1x3 region.

What area does the question mark represent?
It represents area 3 because the 39 fixed cells leave three cells on the 42-cell board.
Where does the r6c6=4 rectangle finish?
It finishes at r5c5:r6c6 as a 2x2 rectangle with area 4.
How many rectangles solve Level 22?
The complete partition has thirteen persistent rectangles, including the 3-cell unknown region.