2026-08-01 daily answer

Step-by-step reasoning

1. Region 3 has only one safe cell left: R3C9.
2. R3C9 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 7 has only one safe cell left: R7C8.
6. R7C8 rules out cells in its row, column, color region, and touching neighborhood.
7. Region 8 has only one safe cell left: R8C1.
8. R8C1 rules out cells in its row, column, color region, and touching neighborhood.
9. Region 9 has only one safe cell left: R9C7.
10. R9C7 rules out cells in its row, column, color region, and touching neighborhood.
11. Region 5 has only one safe cell left: R5C6.
12. R5C6 rules out cells in its row, column, color region, and touching neighborhood.
13. Region 1 has only one safe cell left: R1C5.
14. R1C5 rules out cells in its row, column, color region, and touching neighborhood.
15. Row 2 has only one safe cell left: R2C2.
16. R2C2 rules out cells in its row, column, color region, and touching neighborhood.
17. Row 4 has only one safe cell left: R4C4.