2026-09-10 daily answer

Step-by-step reasoning

1. Region 4 has only one safe cell left: R4C7.
2. R4C7 rules out cells in its row, column, color region, and touching neighborhood.
3. Region 1 has only one safe cell left: R1C6.
4. R1C6 rules out cells in its row, column, color region, and touching neighborhood.
5. Region 7 has only one safe cell left: R7C4.
6. R7C4 rules out cells in its row, column, color region, and touching neighborhood.
7. A cat at R2C1 leaves no valid completion, so exclude it.
8. A cat at R2C3 leaves no valid completion, so exclude it.
9. Row 2 has only one safe cell left: R2C2.
10. R2C2 rules out cells in its row, column, color region, and touching neighborhood.
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 6 has only one safe cell left: R6C1.
14. R6C1 rules out cells in its row, column, color region, and touching neighborhood.
15. Row 5 has only one safe cell left: R5C3.