2026-09-07 daily answer

Step-by-step reasoning

1. Region 1 has only one safe cell left: R1C2.
2. R1C2 rules out cells in its row, column, color region, and touching neighborhood.
3. Region 4 has only one safe cell left: R4C7.
4. R4C7 rules out cells in its row, column, color region, and touching neighborhood.
5. Region 5 has only one safe cell left: R5C1.
6. R5C1 rules out cells in its row, column, color region, and touching neighborhood.
7. A cat at R2C4 leaves no valid completion, so exclude it.
8. A cat at R2C6 leaves no valid completion, so exclude it.
9. Row 2 has only one safe cell left: R2C5.
10. R2C5 rules out cells in its row, column, color region, and touching neighborhood.
11. Row 3 has only one safe cell left: R3C3.
12. R3C3 rules out cells in its row, column, color region, and touching neighborhood.
13. Row 6 has only one safe cell left: R6C6.
14. R6C6 rules out cells in its row, column, color region, and touching neighborhood.
15. Row 7 has only one safe cell left: R7C4.