2026-09-30 daily answer

Step-by-step reasoning

1. Region 3 has only one safe cell left: R3C2.
2. R3C2 rules out cells in its row, column, color region, and touching neighborhood.
3. A cat at R1C1 leaves no valid completion, so exclude it.
4. A cat at R1C3 leaves no valid completion, so exclude it.
5. A cat at R1C4 leaves no valid completion, so exclude it.
6. A cat at R1C5 leaves no valid completion, so exclude it.
7. A cat at R1C7 leaves no valid completion, so exclude it.
8. Row 1 has only one safe cell left: R1C6.
9. R1C6 rules out cells in its row, column, color region, and touching neighborhood.
10. Row 2 has only one safe cell left: R2C4.
11. R2C4 rules out cells in its row, column, color region, and touching neighborhood.
12. Row 4 has only one safe cell left: R4C7.
13. R4C7 rules out cells in its row, column, color region, and touching neighborhood.
14. Column 5 has only one safe cell left: R7C5.
15. R7C5 rules out cells in its row, column, color region, and touching neighborhood.
16. Region 6 has only one safe cell left: R6C1.
17. R6C1 rules out cells in its row, column, color region, and touching neighborhood.
18. Row 5 has only one safe cell left: R5C3.