2026-08-18 daily answer

Step-by-step reasoning

1. Region 7 has only one safe cell left: R7C5.
2. R7C5 rules out cells in its row, column, color region, and touching neighborhood.
3. Region 6 has only one safe cell left: R6C3.
4. R6C3 rules out cells in its row, column, color region, and touching neighborhood.
5. Region 4 has only one safe cell left: R4C4.
6. R4C4 rules out cells in its row, column, color region, and touching neighborhood.
7. Region 5 has only one safe cell left: R5C1.
8. R5C1 rules out cells in its row, column, color region, and touching neighborhood.
9. A cat at R1C2 leaves no valid completion, so exclude it.
10. A cat at R1C6 leaves no valid completion, so exclude it.
11. Row 1 has only one safe cell left: R1C7.
12. R1C7 rules out cells in its row, column, color region, and touching neighborhood.
13. Row 2 has only one safe cell left: R2C2.
14. R2C2 rules out cells in its row, column, color region, and touching neighborhood.
15. Row 3 has only one safe cell left: R3C6.