2026-07-28 daily answer

Step-by-step reasoning

1. Region 1 has only one safe cell left: R1C6.
2. R1C6 rules out cells in its row, column, color region, and touching neighborhood.
3. Region 3 has only one safe cell left: R3C7.
4. R3C7 rules out cells in its row, column, color region, and touching neighborhood.
5. Region 2 has only one safe cell left: R2C4.
6. R2C4 rules out cells in its row, column, color region, and touching neighborhood.
7. Region 6 has only one safe cell left: R6C5.
8. R6C5 rules out cells in its row, column, color region, and touching neighborhood.
9. A cat at R4C2 leaves no valid completion, so exclude it.
10. A cat at R4C3 leaves no valid completion, so exclude it.
11. Row 4 has only one safe cell left: R4C1.
12. R4C1 rules out cells in its row, column, color region, and touching neighborhood.
13. Row 5 has only one safe cell left: R5C3.
14. R5C3 rules out cells in its row, column, color region, and touching neighborhood.
15. Row 7 has only one safe cell left: R7C2.