2026-09-01 daily answer

Step-by-step reasoning

1. Region 1 has only one safe cell left: R1C7.
2. R1C7 rules out cells in its row, column, color region, and touching neighborhood.
3. Region 4 has only one safe cell left: R4C6.
4. R4C6 rules out cells in its row, column, color region, and touching neighborhood.
5. Region 3 has only one safe cell left: R3C1.
6. R3C1 rules out cells in its row, column, color region, and touching neighborhood.
7. Region 7 has only one safe cell left: R7C5.
8. R7C5 rules out cells in its row, column, color region, and touching neighborhood.
9. A cat at R2C4 leaves no valid completion, so exclude it.
10. Row 2 has only one safe cell left: R2C3.
11. R2C3 rules out cells in its row, column, color region, and touching neighborhood.
12. Row 6 has only one safe cell left: R6C2.
13. R6C2 rules out cells in its row, column, color region, and touching neighborhood.
14. Row 5 has only one safe cell left: R5C4.