Region 1Region 2Region 3Region 4Region 5Region 6Region 7Region 8
Start Level 20 from the confirmed cat at C3.
If C3 were empty, its four-cell region would have to use B1, B2, or B3, locking a cat into column B. The bottom-left region would then lose its column-B cells and be limited to A6, A7, or A8, locking column A. The upper-left region uses only column A plus B4, so it would have no valid cell. Therefore C3 must contain the cat.
C3's region would otherwise be limited to B1–B3.
That locks the bottom-left region into A6–A8.
The upper-left region would be empty, so C3 is forced.
2
Step 2: Place the cat at D8
D8 prevents a forced E2 → F8 → D7 chain from emptying the four-cell region at the bottom right.
Region 1Region 2Region 3Region 4Region 5Region 6Region 7Region 8
Add D8 while keeping C3 fixed; the board diagram now shows 2/8 cats.
If D8 were empty, C3 would force E2. Column E would then remove E8 from the bottom strip, leaving F8 as its only candidate. With C3, E2, and F8 fixed, the large central region would be forced to D7. Row 7, row 8, and the no-touch rule around F8 would then remove G7, H7, G8, and H8, leaving that four-cell region empty. Therefore D8 is forced.
Region 1Region 2Region 3Region 4Region 5Region 6Region 7Region 8
Add G7 while keeping C3 and D8 fixed; the board diagram now shows 3/8 cats.
If G7 were empty, D8 would rule out G8 and H8, forcing H7 in the four-cell region. C3 would then force E2, followed by F4, G1, and A5 as the only candidates in their regions. A5 uses row 5 and column A and touches B6 diagonally; rows 7 and 8 are already used. The bottom-left region would have no valid cell, so G7 is forced.
Rejecting G7 forces H7 in the bottom-right region.
The resulting chain ends at A5, which blocks B6 diagonally.
The bottom-left region would be empty, so G7 is forced.
4
Step 4: Place the cat at E2
E2 is the only cell left in its five-cell region after applying column, row, and no-touch exclusions from C3.
Region 1Region 2Region 3Region 4Region 5Region 6Region 7Region 8
Add E2 while keeping C3, D8, and G7 fixed; the board diagram now shows 4/8 cats.
This region contains C2, D2, E2, D3, and E3. C2 is excluded because C3 already uses column C. D2 and D3 touch C3, while E3 shares row 3 with C3. E2 is the only remaining candidate, so the cat must go there.
C2 is blocked by the cat already in column C.
D2 and D3 touch C3, while E3 shares row 3.
E2 is the region's only remaining candidate.
5
Step 5: Place the cat at B6
B6 is forced because rejecting it makes A6 the only option in row 6, which empties the upper-left region.
Region 1Region 2Region 3Region 4Region 5Region 6Region 7Region 8
Add B6 while keeping C3, D8, G7, and E2 fixed; the board diagram now shows 5/8 cats.
With C3, D8, G7, and E2 fixed, F4 is the only candidate in its region. If B6 were empty, row 6 could only use A6: C6 through G6 are blocked by used columns, and H6 touches G7. A6 would eliminate A1 and A5 through column A, while F4 already blocks B4 through row 4. The upper-left region would have no valid cell, so B6 is forced.
With the first four cats fixed, F4 is forced in its region.
Rejecting B6 leaves A6 as row 6's only candidate.
A6 would empty the upper-left region, so B6 is forced.
6
Step 6: Place the cat at A1
A1 is forced because rejecting it leaves A4, which would occupy row 4 and remove the only candidate at F4.
Region 1Region 2Region 3Region 4Region 5Region 6Region 7Region 8
Add A1 while keeping C3, D8, G7, E2, and B6 fixed; the board diagram now shows 6/8 cats.
If A1 were empty, the upper-left region would be reduced to A4: rows 2 and 3 are already used, B4 shares column B with B6, and A5 touches B6 diagonally. Placing the cat at A4 would use row 4 and eliminate F4, the only candidate in the large central region. Therefore A1 is forced.
Rejecting A1 leaves A4 as the upper-left region's only candidate.
A4 would use row 4 and eliminate F4.
The central region would be empty, so A1 is forced.
7
Step 7: Place the cat at F4
F4 is the large region's only remaining candidate after the first six placements use the competing rows and columns.
Region 1Region 2Region 3Region 4Region 5Region 6Region 7Region 8
Add F4 while keeping C3, D8, G7, E2, B6, and A1 fixed; the board diagram now shows 7/8 cats.
The first six cats already use rows 1, 2, 3, 6, 7, and 8 and columns A, B, C, D, E, and G. Every other cell in the large region conflicts with one of those rows or columns, while F1 is also excluded because it touches E2 diagonally. Only F4 remains, so the cat is forced there.
Rows 1, 2, 3, 6, 7, and 8 are already used.
Columns A, B, C, D, E, and G are used, and F1 touches E2.
F4 is the large region's only remaining candidate.
8
Step 8: Place the cat at H5
H5 completes the puzzle because row 5 and column H are the only unused row and column.
Region 1Region 2Region 3Region 4Region 5Region 6Region 7Region 8
Add H5 while keeping C3, D8, G7, E2, B6, A1, and F4 fixed; the board diagram now shows 8/8 cats.
After the first seven cats are fixed, only row 5 and column H remain unused. Their intersection, H5, belongs to the final unsolved region and does not touch any confirmed cat. H5 is therefore the unique final placement.
Only row 5 and column H remain unused.
Their intersection H5 belongs to the final unsolved region.
H5 does not touch another cat, so it completes the board.
Region 1Region 2Region 3Region 4Region 5Region 6Region 7Region 8
The completed Level 20 visual board: A1, E2, C3, F4, H5, B6, G7, and D8.
Logic recap
Why This Solves Level 20
The final placements (A1, E2, C3, F4, H5, B6, G7, D8) cover 8 rows and 8 columns exactly once. Each cat stays inside the 8x8 board and keeps the row, column, and no-touching rules intact.
Final check
Rows 1-8 each contain one cat.
Columns A-H each contain one cat.
No two final cats touch, including diagonally.
Ready to solve one yourself?
Practice Cat Logic Without Breaking Your Flow
Meowdoku blends Sudoku-style row and column logic with colored regions: place one cat in each region, and never let two cats share a row, share a column, or touch.
If ads or limited hearts interrupt your solving flow—or you simply want X marks and help tools close at hand—play the same style of cat logic on our original original practice boards.
The final cat positions are A1, E2, C3, F4, H5, B6, G7, D8.
How many cats are in Meowdoku Level 20?
Level 20 uses a 8x8 board, so the answer places 8 cats.
Do I need to watch the Level 20 video?
No. The written steps and board diagrams show the complete answer path. The video is only an optional reference.
Is this an official Meowdoku level guide?
No. This is an unofficial independent guide that explains the logic for players. It is not affiliated with the official Meowdoku app or its developers.
