Catdoku level 1312 answer and walkthrough

The level 1312 board

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

Level 1312 answer

1. Row 1: column 9, in the yellow patch
2. Row 2: column 5, in the sky patch
3. Row 3: column 8, in the rose patch
4. Row 4: column 3, in the mint patch
5. Row 5: column 1, in the lilac patch
6. Row 6: column 4, in the peach patch
7. Row 7: column 10, in the aqua patch
8. Row 8: column 6, in the coral patch
9. Row 9: column 2, in the lime patch
10. Row 10: column 7, in the periwinkle patch

How to solve level 1312, 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 10: the coral patch is down to a single free square at row 8, column 6, so its cat settles there.
2. Cat 2 of 10: the periwinkle patch is down to a single free square at row 10, column 7, so its cat settles there.
3. Every free square of the lime patch sits in row 9, so the lime cat must come from there and the rest of row 9 can be crossed out. A cat at row 2, column 9 would leave row 1 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 6, column 3 would leave the peach patch with no home for its cat, so cross that square out. A cat at row 6, column 9 would leave the aqua patch with no home for its cat, so cross that square out. A cat at row 7, column 9 would leave the aqua patch with no home for its cat, so cross that square out. A cat at row 4, column 8 would leave column 9 with no home for its cat, so cross that square out. A cat at row 4, column 10 would leave column 9 with no home for its cat, so cross that square 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. Column 9 only has free squares inside the yellow patch, so that patch's cat is spoken for and its squares outside the line can be crossed out. Cat 3 of 10: column 10 has exactly one square left, at row 7, so the cat goes there.
4. Every free square of the peach patch sits in column 4, so the peach cat must come from there and the rest of column 4 can be crossed out. A cat at row 1, column 1 would leave row 2 with no home for its cat, so cross that square out. A cat at row 1, column 2 would leave row 2 with no home for its cat, so cross that square out. A cat at row 1, column 3 would leave row 2 with no home for its cat, so cross that square out. A cat at row 2, column 2 would leave column 3 with no home for its cat, so cross that square out. Row 2 only has free squares inside the sky patch, so that patch's cat is spoken for and its squares outside the line can be crossed out. Cat 4 of 10: the only free square left in row 1 is column 9, so the cat goes there.
5. Cat 5 of 10: column 8 has exactly one square left, at row 3, so the cat goes there.
6. Cat 6 of 10: column 5 has exactly one square left, at row 2, so the cat goes there.
7. Cat 7 of 10: column 3 has exactly one square left, at row 4, so the cat goes there.
8. Cat 8 of 10: the peach patch is down to a single free square at row 6, column 4, so its cat settles there.
9. Cat 9 of 10: the lilac patch is down to a single free square at row 5, column 1, so its cat settles there.
10. Cat 10 of 10: the lime patch is down to a single free square at row 9, column 2, so its cat settles there.