2026-09-28 daily answer

Step-by-step reasoning

1. Region 3 has only one safe cell left: R3C1.
2. R3C1 rules out cells in its row, column, color region, and touching neighborhood.
3. Region 1 has only one safe cell left: R1C2.
4. R1C2 rules out cells in its row, column, color region, and touching neighborhood.
5. Region 7 has only one safe cell left: R7C5.
6. R7C5 rules out cells in its row, column, color region, and touching neighborhood.
7. A cat at R2C6 leaves no valid completion, so exclude it.
8. A cat at R2C7 leaves no valid completion, so exclude it.
9. Row 2 has only one safe cell left: R2C4.
10. R2C4 rules out cells in its row, column, color region, and touching neighborhood.
11. A cat at R4C3 leaves no valid completion, so exclude it.
12. A cat at R4C7 leaves no valid completion, so exclude it.
13. Row 4 has only one safe cell left: R4C6.
14. R4C6 rules out cells in its row, column, color region, and touching neighborhood.
15. Row 5 has only one safe cell left: R5C3.
16. R5C3 rules out cells in its row, column, color region, and touching neighborhood.
17. Row 6 has only one safe cell left: R6C7.