Use these positions to check the answer quickly before reading the logic.
I1
Row 1, Column 9
F2
Row 2, Column 6
A3
Row 3, Column 1
E4
Row 4, Column 5
G5
Row 5, Column 7
B6
Row 6, Column 2
H7
Row 7, Column 8
D8
Row 8, Column 4
J9
Row 9, Column 10
C10
Row 10, Column 3
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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 D8
The board reaches 1/10 cats after the placement at D8.
Visual step: D8
Use this image to confirm the cat at D8, row 8, column D. This keeps the one-cat-per-row and one-cat-per-column rule intact.
Board state shows 1/10 cats placed.
D8 is the new cat for this step.
9 cats remain after this placement.
2
Step 2: Place the cat at C10
The board reaches 2/10 cats after the placement at C10.
Visual step: C10
Use this image to confirm the cat at C10, row 10, column C. Keep the earlier cats at D8. This keeps the one-cat-per-row and one-cat-per-column rule intact.
Board state shows 2/10 cats placed.
C10 is the new cat for this step.
8 cats remain after this placement.
3
Step 3: Place the cat at E4
The board reaches 3/10 cats after the placement at E4.
Visual step: E4
Use this image to confirm the cat at E4, row 4, column E. Keep the earlier cats at D8, C10. This keeps the one-cat-per-row and one-cat-per-column rule intact.
Board state shows 3/10 cats placed.
E4 is the new cat for this step.
7 cats remain after this placement.
4
Step 4: Place the cat at F2
The board reaches 4/10 cats after the placement at F2.
Visual step: F2
Use this image to confirm the cat at F2, row 2, column F. Keep the earlier cats at D8, C10, E4. This keeps the one-cat-per-row and one-cat-per-column rule intact.
Board state shows 4/10 cats placed.
F2 is the new cat for this step.
6 cats remain after this placement.
5
Step 5: Place the cat at G5
The board reaches 5/10 cats after the placement at G5.
Visual step: G5
Use this image to confirm the cat at G5, row 5, column G. Keep the earlier cats at D8, C10, E4, F2. This keeps the one-cat-per-row and one-cat-per-column rule intact.
Board state shows 5/10 cats placed.
G5 is the new cat for this step.
5 cats remain after this placement.
6
Step 6: Place the cat at H7
The board reaches 6/10 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 D8, C10, E4, F2, G5. This keeps the one-cat-per-row and one-cat-per-column rule intact.
Board state shows 6/10 cats placed.
H7 is the new cat for this step.
4 cats remain after this placement.
7
Step 7: Place the cat at B6
The board reaches 7/10 cats after the placement at B6.
Visual step: B6
Use this image to confirm the cat at B6, row 6, column B. Keep the earlier cats at D8, C10, E4, F2, G5, H7. This keeps the one-cat-per-row and one-cat-per-column rule intact.
Board state shows 7/10 cats placed.
B6 is the new cat for this step.
3 cats remain after this placement.
8
Step 8: Place the cat at J9
The board reaches 8/10 cats after the placement at J9.
Visual step: J9
Use this image to confirm the cat at J9, row 9, column J. Keep the earlier cats at D8, C10, E4, F2, G5, H7, B6. This keeps the one-cat-per-row and one-cat-per-column rule intact.
Board state shows 8/10 cats placed.
J9 is the new cat for this step.
2 cats remain after this placement.
9
Step 9: Place the cat at I1
The board reaches 9/10 cats after the placement at I1.
Visual step: I1
Use this image to confirm the cat at I1, row 1, column I. Keep the earlier cats at D8, C10, E4, F2, G5, H7, B6, J9. This keeps the one-cat-per-row and one-cat-per-column rule intact.
Board state shows 9/10 cats placed.
I1 is the new cat for this step.
1 cat remains after this placement.
10
Step 10: Place the cat at A3
The board reaches 10/10 cats after the placement at A3.
Visual step: A3
Use this image to confirm the cat at A3, row 3, column A. Keep the earlier cats at D8, C10, E4, F2, G5, H7, B6, J9, I1. This keeps the one-cat-per-row and one-cat-per-column rule intact.
Board state shows 10/10 cats placed.
A3 is the new cat for this step.
All 10 cats are now placed without sharing a row or column.
Final board image
Final screenshot source: Step 10, focused on A3.
Logic recap
Why This Solves Level 158
The final placements (I1, F2, A3, E4, G5, B6, H7, D8, J9, C10) cover 10 rows and 10 columns exactly once. Each cat stays inside the 10x10 board and keeps the row, column, and no-touching rules intact.
Final check
Rows 1-10 each contain one cat.
Columns A-J 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.