2026-08-25 daily answer

Step-by-step reasoning

1. Region 3 has only one safe cell left: R3C2.
2. R3C2 rules out cells in its row, column, color region, and touching neighborhood.
3. Region 5 has only one safe cell left: R5C4.
4. R5C4 rules out cells in its row, column, color region, and touching neighborhood.
5. Region 7 has only one safe cell left: R7C1.
6. R7C1 rules out cells in its row, column, color region, and touching neighborhood.
7. Column 3 has only one safe cell left: R1C3.
8. R1C3 rules out cells in its row, column, color region, and touching neighborhood.
9. Column 5 has only one safe cell left: R2C5.
10. R2C5 rules out cells in its row, column, color region, and touching neighborhood.
11. Region 6 has only one safe cell left: R6C6.
12. R6C6 rules out cells in its row, column, color region, and touching neighborhood.
13. Row 4 has only one safe cell left: R4C7.