2026-08-19 daily answer

Step-by-step reasoning

1. Region 2 has only one safe cell left: R2C7.
2. R2C7 rules out cells in its row, column, color region, and touching neighborhood.
3. Region 4 has only one safe cell left: R4C1.
4. R4C1 rules out cells in its row, column, color region, and touching neighborhood.
5. Region 3 has only one safe cell left: R3C4.
6. R3C4 rules out cells in its row, column, color region, and touching neighborhood.
7. Region 5 has only one safe cell left: R5C3.
8. R5C3 rules out cells in its row, column, color region, and touching neighborhood.
9. Region 7 has only one safe cell left: R7C2.
10. R7C2 rules out cells in its row, column, color region, and touching neighborhood.
11. Row 1 has only one safe cell left: R1C5.
12. R1C5 rules out cells in its row, column, color region, and touching neighborhood.
13. Row 6 has only one safe cell left: R6C6.