Use these positions to check the answer quickly before reading the logic.
D1
Row 1, Column 4
G2
Row 2, Column 7
A3
Row 3, Column 1
C4
Row 4, Column 3
H5
Row 5, Column 8
J6
Row 6, Column 10
E7
Row 7, Column 5
I8
Row 8, Column 9
F9
Row 9, Column 6
B10
Row 10, Column 2
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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 H5
The board reaches 1/10 cats after the placement at H5.
Visual step: H5
Use this image to confirm the cat at H5, row 5, column H. This keeps the one-cat-per-row and one-cat-per-column rule intact.
Board state shows 1/10 cats placed.
H5 is the new cat for this step.
9 cats remain after this placement.
2
Step 2: Place the cat at J6
The board reaches 2/10 cats after the placement at J6.
Visual step: J6
Use this image to confirm the cat at J6, row 6, column J. Keep the earlier cats at H5. This keeps the one-cat-per-row and one-cat-per-column rule intact.
Board state shows 2/10 cats placed.
J6 is the new cat for this step.
8 cats remain after this placement.
3
Step 3: Place the cat at I8
The board reaches 3/10 cats after the placement at I8.
Visual step: I8
Use this image to confirm the cat at I8, row 8, column I. Keep the earlier cats at H5, J6. This keeps the one-cat-per-row and one-cat-per-column rule intact.
Board state shows 3/10 cats placed.
I8 is the new cat for this step.
7 cats remain after this placement.
4
Step 4: Place the cat at F9
The board reaches 4/10 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 H5, J6, I8. This keeps the one-cat-per-row and one-cat-per-column rule intact.
Board state shows 4/10 cats placed.
F9 is the new cat for this step.
6 cats remain after this placement.
5
Step 5: Place the cat at E7
The board reaches 5/10 cats after the placement at E7.
Visual step: E7
Use this image to confirm the cat at E7, row 7, column E. Keep the earlier cats at H5, J6, I8, F9. This keeps the one-cat-per-row and one-cat-per-column rule intact.
Board state shows 5/10 cats placed.
E7 is the new cat for this step.
5 cats remain after this placement.
6
Step 6: Place the cat at D1
The board reaches 6/10 cats after the placement at D1.
Visual step: D1
Use this image to confirm the cat at D1, row 1, column D. Keep the earlier cats at H5, J6, I8, F9, E7. This keeps the one-cat-per-row and one-cat-per-column rule intact.
Board state shows 6/10 cats placed.
D1 is the new cat for this step.
4 cats remain after this placement.
7
Step 7: Place the cat at G2
The board reaches 7/10 cats after the placement at G2.
Visual step: G2
Use this image to confirm the cat at G2, row 2, column G. Keep the earlier cats at H5, J6, I8, F9, E7, D1. This keeps the one-cat-per-row and one-cat-per-column rule intact.
Board state shows 7/10 cats placed.
G2 is the new cat for this step.
3 cats remain after this placement.
8
Step 8: Place the cat at A3
The board reaches 8/10 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 H5, J6, I8, F9, E7, D1, G2. This keeps the one-cat-per-row and one-cat-per-column rule intact.
Board state shows 8/10 cats placed.
A3 is the new cat for this step.
2 cats remain after this placement.
9
Step 9: Place the cat at C4
The board reaches 9/10 cats after the placement at C4.
Visual step: C4
Use this image to confirm the cat at C4, row 4, column C. Keep the earlier cats at H5, J6, I8, F9, E7, D1, G2, A3. This keeps the one-cat-per-row and one-cat-per-column rule intact.
Board state shows 9/10 cats placed.
C4 is the new cat for this step.
1 cat remains after this placement.
10
Step 10: Place the cat at B10
The board reaches 10/10 cats after the placement at B10.
Visual step: B10
Use this image to confirm the cat at B10, row 10, column B. Keep the earlier cats at H5, J6, I8, F9, E7, D1, G2, A3, C4. This keeps the one-cat-per-row and one-cat-per-column rule intact.
Board state shows 10/10 cats placed.
B10 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 B10.
Logic recap
Why This Solves Level 186
The final placements (D1, G2, A3, C4, H5, J6, E7, I8, F9, B10) 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.