2026-10-01 daily answer

Step-by-step reasoning

1. Region 2 has only one safe cell left: R2C3.
2. R2C3 rules out cells in its row, column, color region, and touching neighborhood.
3. Region 3 has only one safe cell left: R3C6.
4. R3C6 rules out cells in its row, column, color region, and touching neighborhood.
5. Region 4 has only one safe cell left: R4C2.
6. R4C2 rules out cells in its row, column, color region, and touching neighborhood.
7. Region 1 has only one safe cell left: R1C1.
8. R1C1 rules out cells in its row, column, color region, and touching neighborhood.
9. Region 5 has only one safe cell left: R5C5.
10. R5C5 rules out cells in its row, column, color region, and touching neighborhood.
11. Row 6 has only one safe cell left: R6C7.
12. R6C7 rules out cells in its row, column, color region, and touching neighborhood.
13. Row 7 has only one safe cell left: R7C4.