Catdoku level 1004 answer and walkthrough

The level 1004 board

Place one cat in every row, every column and every colored patch. No two cats may touch, not even diagonally.

Level 1004 answer

1. Row 1: column 3, in the yellow patch
2. Row 2: column 6, in the sky patch
3. Row 3: column 9, in the rose patch
4. Row 4: column 1, in the mint patch
5. Row 5: column 5, in the lilac patch
6. Row 6: column 2, in the peach patch
7. Row 7: column 7, in the aqua patch
8. Row 8: column 4, in the coral patch
9. Row 9: column 8, in the lime patch

How to solve level 1004, step by step

After every placed cat, cross out the rest of its row, its column, its patch and the four corner squares around it. The steps below assume you do (the in-game auto-paws assist does it for you).

1. Cat 1 of 9: the lime patch is down to a single free square at row 9, column 8, so its cat settles there.
2. Cat 2 of 9: the coral patch is down to a single free square at row 8, column 4, so its cat settles there.
3. A cat at row 3, column 6 would leave the rose patch with no home for its cat, so cross that square out. A cat at row 3, column 7 would leave the rose patch with no home for its cat, so cross that square out. A cat at row 4, column 2 would leave the mint patch with no home for its cat, so cross that square out. A cat at row 4, column 9 would leave the rose patch with no home for its cat, so cross that square out. The rose and aqua patches all squeeze into columns 7 and 9, so those columns are reserved for them; every other square there can be crossed out. A cat at row 1, column 5 would leave the sky patch with no home for its cat, so cross that square out. A cat at row 2, column 5 would leave row 1 with no home for its cat, so cross that square out. A cat at row 4, column 6 would leave column 5 with no home for its cat, so cross that square out. The yellow, mint and peach patches all squeeze into columns 1, 2 and 3, so those columns are reserved for them; every other square there can be crossed out. The lilac, peach and aqua patches all squeeze into rows 5, 6 and 7, so those rows are reserved for them; every other square there can be crossed out. Cat 3 of 9: the mint patch is down to a single free square at row 4, column 1, so its cat settles there.
4. Cat 4 of 9: the rose patch is down to a single free square at row 3, column 9, so its cat settles there.
5. Cat 5 of 9: the aqua patch is down to a single free square at row 7, column 7, so its cat settles there.
6. Cat 6 of 9: the peach patch is down to a single free square at row 6, column 2, so its cat settles there.
7. Cat 7 of 9: the yellow patch is down to a single free square at row 1, column 3, so its cat settles there.
8. Cat 8 of 9: the sky patch is down to a single free square at row 2, column 6, so its cat settles there.
9. Cat 9 of 9: the lilac patch is down to a single free square at row 5, column 5, so its cat settles there.