2026-10-03 daily answer

Step-by-step reasoning

1. Region 1 has only one safe cell left: R1C9.
2. R1C9 rules out cells in its row, column, color region, and touching neighborhood.
3. Region 2 has only one safe cell left: R2C7.
4. R2C7 rules out cells in its row, column, color region, and touching neighborhood.
5. Region 3 has only one safe cell left: R3C3.
6. R3C3 rules out cells in its row, column, color region, and touching neighborhood.
7. Region 5 has only one safe cell left: R5C8.
8. R5C8 rules out cells in its row, column, color region, and touching neighborhood.
9. Region 7 has only one safe cell left: R7C1.
10. R7C1 rules out cells in its row, column, color region, and touching neighborhood.
11. Column 2 has only one safe cell left: R9C2.
12. R9C2 rules out cells in its row, column, color region, and touching neighborhood.
13. Region 6 has only one safe cell left: R6C4.
14. R6C4 rules out cells in its row, column, color region, and touching neighborhood.
15. Region 4 has only one safe cell left: R4C5.
16. R4C5 rules out cells in its row, column, color region, and touching neighborhood.
17. Row 8 has only one safe cell left: R8C6.