Catdoku level 2770 answer and walkthrough

The level 2770 board

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

Level 2770 answer

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

How to solve level 2770, 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. Every free square of the yellow patch sits in column 10, so the yellow cat must come from there and the rest of column 10 can be crossed out. A cat at row 1, column 1 would leave row 7 with no home for its cat, so cross that square out. A cat at row 1, column 9 would leave column 10 with no home for its cat, so cross that square out. A cat at row 2, column 1 would leave row 7 with no home for its cat, so cross that square out. A cat at row 2, column 9 would leave column 10 with no home for its cat, so cross that square out. A cat at row 3, column 1 would leave row 7 with no home for its cat, so cross that square out. A cat at row 4, column 1 would leave row 7 with no home for its cat, so cross that square out. A cat at row 5, column 1 would leave row 7 with no home for its cat, so cross that square out. A cat at row 5, column 6 would leave the mint patch with no home for its cat, so cross that square out. A cat at row 5, column 7 would leave the peach patch with no home for its cat, so cross that square out. The yellow and sky patches all squeeze into rows 1 and 2, so those rows are reserved for them; every other square there can be crossed out. A cat at row 4, column 5 would leave the lilac patch with no home for its cat, so cross that square out. A cat at row 3, column 7 would leave the mint patch with no home for its cat, so cross that square out. A cat at row 10, column 9 would leave column 3 with no home for its cat, so cross that square out. The rose, mint, lilac and peach patches all squeeze into rows 3, 4, 5 and 6, so those rows are reserved for them; every other square there can be crossed out. Every free square of the coral patch sits in column 1, so the coral cat must come from there and the rest of column 1 can be crossed out. A cat at row 5, column 8 would leave row 6 with no home for its cat, so cross that square out. A cat at row 7, column 8 would leave row 6 with no home for its cat, so cross that square out. A cat at row 8, column 2 would leave column 1 with no home for its cat, so cross that square out. A cat at row 9, column 3 would leave column 2 with no home for its cat, so cross that square out. The sky, rose, mint and peach patches all squeeze into columns 6, 7, 8 and 9, so those columns are reserved for them; every other square there can be crossed out. A cat at row 3, column 5 would leave column 6 with no home for its cat, so cross that square out. A cat at row 7, column 2 would leave row 8 with no home for its cat, so cross that square out. Column 2 only has free squares inside the periwinkle patch, so that patch's cat is spoken for and its squares outside the line can be crossed out. Column 3 only has free squares inside the aqua patch, so that patch's cat is spoken for and its squares outside the line can be crossed out. A cat at row 9, column 1 would leave column 2 with no home for its cat, so cross that square out. A cat at row 8, column 3 would leave row 9 with no home for its cat, so cross that square out. Cat 1 of 10: the aqua patch is down to a single free square at row 7, column 3, so its cat settles there.
2. Cat 2 of 10: the coral patch is down to a single free square at row 8, column 1, so its cat settles there.
3. Cat 3 of 10: the periwinkle patch is down to a single free square at row 10, column 2, so its cat settles there.
4. Cat 4 of 10: the lime patch is down to a single free square at row 9, column 4, so its cat settles there.
5. Cat 5 of 10: the lilac patch is down to a single free square at row 5, column 5, so its cat settles there.
6. Every free square of the mint patch sits in column 7, so the mint cat must come from there and the rest of column 7 can be crossed out. Every free square of the peach patch sits in column 8, so the peach cat must come from there and the rest of column 8 can be crossed out. Cat 6 of 10: the sky patch is down to a single free square at row 2, column 6, so its cat settles there.
7. Cat 7 of 10: the yellow patch is down to a single free square at row 1, column 10, so its cat settles there.
8. Cat 8 of 10: the only free square left in row 3 is column 9, so the cat goes there.
9. Cat 9 of 10: the peach patch is down to a single free square at row 6, column 8, so its cat settles there.
10. Cat 10 of 10: the mint patch is down to a single free square at row 4, column 7, so its cat settles there.