Use these positions to check the answer quickly before reading the logic.
E1
Row 1, Column 5
B2
Row 2, Column 2
I3
Row 3, Column 9
G4
Row 4, Column 7
A5
Row 5, Column 1
C6
Row 6, Column 3
H7
Row 7, Column 8
D8
Row 8, Column 4
F9
Row 9, Column 6
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Each step has a board image with descriptive alt text, so the answer can be reviewed without watching the video.
1
Step 1: Place the cat at B2
The board reaches 1/9 cats after the placement at B2.
Visual step: B2
Use this image to confirm the cat at B2, row 2, column B. This keeps the one-cat-per-row and one-cat-per-column rule intact.
Board state shows 1/9 cats placed.
B2 is the new cat for this step.
8 cats remain after this placement.
2
Step 2: Place the cat at D8
The board reaches 2/9 cats after the placement at D8.
Visual step: D8
Use this image to confirm the cat at D8, row 8, column D. Keep the earlier cats at B2. This keeps the one-cat-per-row and one-cat-per-column rule intact.
Board state shows 2/9 cats placed.
D8 is the new cat for this step.
7 cats remain after this placement.
3
Step 3: Place the cat at E1
The board reaches 3/9 cats after the placement at E1.
Visual step: E1
Use this image to confirm the cat at E1, row 1, column E. Keep the earlier cats at B2, D8. This keeps the one-cat-per-row and one-cat-per-column rule intact.
Board state shows 3/9 cats placed.
E1 is the new cat for this step.
6 cats remain after this placement.
4
Step 4: Place the cat at I3
The board reaches 4/9 cats after the placement at I3.
Visual step: I3
Use this image to confirm the cat at I3, row 3, column I. Keep the earlier cats at B2, D8, E1. This keeps the one-cat-per-row and one-cat-per-column rule intact.
Board state shows 4/9 cats placed.
I3 is the new cat for this step.
5 cats remain after this placement.
5
Step 5: Place the cat at G4
The board reaches 5/9 cats after the placement at G4.
Visual step: G4
Use this image to confirm the cat at G4, row 4, column G. Keep the earlier cats at B2, D8, E1, I3. This keeps the one-cat-per-row and one-cat-per-column rule intact.
Board state shows 5/9 cats placed.
G4 is the new cat for this step.
4 cats remain after this placement.
6
Step 6: Place the cat at C6
The board reaches 6/9 cats after the placement at C6.
Visual step: C6
Use this image to confirm the cat at C6, row 6, column C. Keep the earlier cats at B2, D8, E1, I3, G4. This keeps the one-cat-per-row and one-cat-per-column rule intact.
Board state shows 6/9 cats placed.
C6 is the new cat for this step.
3 cats remain after this placement.
7
Step 7: Place the cat at A5
The board reaches 7/9 cats after the placement at A5.
Visual step: A5
Use this image to confirm the cat at A5, row 5, column A. Keep the earlier cats at B2, D8, E1, I3, G4, C6. This keeps the one-cat-per-row and one-cat-per-column rule intact.
Board state shows 7/9 cats placed.
A5 is the new cat for this step.
2 cats remain after this placement.
8
Step 8: Place the cat at H7
The board reaches 8/9 cats after the placement at H7.
Visual step: H7
Use this image to confirm the cat at H7, row 7, column H. Keep the earlier cats at B2, D8, E1, I3, G4, C6, A5. This keeps the one-cat-per-row and one-cat-per-column rule intact.
Board state shows 8/9 cats placed.
H7 is the new cat for this step.
1 cat remains after this placement.
9
Step 9: Place the cat at F9
The board reaches 9/9 cats after the placement at F9.
Visual step: F9
Use this image to confirm the cat at F9, row 9, column F. Keep the earlier cats at B2, D8, E1, I3, G4, C6, A5, H7. This keeps the one-cat-per-row and one-cat-per-column rule intact.
Board state shows 9/9 cats placed.
F9 is the new cat for this step.
All 9 cats are now placed without sharing a row or column.
Final board image
Final screenshot source: Step 9, focused on F9.
Logic recap
Why This Solves Level 72
The final placements (E1, B2, I3, G4, A5, C6, H7, D8, F9) cover 9 rows and 9 columns exactly once. Each cat stays inside the 9x9 board and keeps the row, column, and no-touching rules intact.
Final check
Rows 1-9 each contain one cat.
Columns A-I each contain one cat.
No two final cats touch, including diagonally.
Optional video
Video Walkthrough
Use the images and written steps first. Watch the video only if you want to compare the full solve.