2026-07-29 daily answer

Step-by-step reasoning

1. Region 1 has only one safe cell left: R1C3.
2. R1C3 rules out cells in its row, column, color region, and touching neighborhood.
3. Region 2 has only one safe cell left: R2C5.
4. R2C5 rules out cells in its row, column, color region, and touching neighborhood.
5. Region 3 has only one safe cell left: R3C7.
6. R3C7 rules out cells in its row, column, color region, and touching neighborhood.
7. Region 5 has only one safe cell left: R5C1.
8. R5C1 rules out cells in its row, column, color region, and touching neighborhood.
9. Row 4 has only one safe cell left: R4C4.
10. R4C4 rules out cells in its row, column, color region, and touching neighborhood.
11. Row 6 has only one safe cell left: R6C6.
12. R6C6 rules out cells in its row, column, color region, and touching neighborhood.
13. Row 7 has only one safe cell left: R7C2.