2026-09-13 daily answer

Step-by-step reasoning

1. Region 1 has only one safe cell left: R1C3.
2. R1C3 rules out cells in its row, column, color region, and touching neighborhood.
3. Region 5 has only one safe cell left: R5C7.
4. R5C7 rules out cells in its row, column, color region, and touching neighborhood.
5. A cat at R2C5 leaves no valid completion, so exclude it.
6. A cat at R2C6 leaves no valid completion, so exclude it.
7. Row 2 has only one safe cell left: R2C1.
8. R2C1 rules out cells in its row, column, color region, and touching neighborhood.
9. A cat at R3C4 leaves no valid completion, so exclude it.
10. A cat at R3C6 leaves no valid completion, so exclude it.
11. Row 3 has only one safe cell left: R3C5.
12. R3C5 rules out cells in its row, column, color region, and touching neighborhood.
13. Row 4 has only one safe cell left: R4C2.
14. R4C2 rules out cells in its row, column, color region, and touching neighborhood.
15. Row 6 has only one safe cell left: R6C4.
16. R6C4 rules out cells in its row, column, color region, and touching neighborhood.
17. Row 7 has only one safe cell left: R7C6.