2026-08-17 daily answer

Step-by-step reasoning

1. Region 3 has only one safe cell left: R3C3.
2. R3C3 rules out cells in its row, column, color region, and touching neighborhood.
3. Region 7 has only one safe cell left: R7C6.
4. R7C6 rules out cells in its row, column, color region, and touching neighborhood.
5. Region 2 has only one safe cell left: R2C7.
6. R2C7 rules out cells in its row, column, color region, and touching neighborhood.
7. A cat at R1C1 leaves no valid completion, so exclude it.
8. A cat at R1C2 leaves no valid completion, so exclude it.
9. A cat at R1C5 leaves no valid completion, so exclude it.
10. Row 1 has only one safe cell left: R1C4.
11. R1C4 rules out cells in its row, column, color region, and touching neighborhood.
12. Region 5 has only one safe cell left: R5C5.
13. R5C5 rules out cells in its row, column, color region, and touching neighborhood.
14. Row 4 has only one safe cell left: R4C1.
15. R4C1 rules out cells in its row, column, color region, and touching neighborhood.
16. Row 6 has only one safe cell left: R6C2.