2026-08-09 daily answer

Step-by-step reasoning

1. Region 1 has only one safe cell left: R1C5.
2. R1C5 rules out cells in its row, column, color region, and touching neighborhood.
3. Region 3 has only one safe cell left: R3C1.
4. R3C1 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. Region 4 has only one safe cell left: R4C3.
8. R4C3 rules out cells in its row, column, color region, and touching neighborhood.
9. Row 5 has only one safe cell left: R5C6.
10. R5C6 rules out cells in its row, column, color region, and touching neighborhood.
11. Row 6 has only one safe cell left: R6C2.
12. R6C2 rules out cells in its row, column, color region, and touching neighborhood.
13. Row 7 has only one safe cell left: R7C4.