2026-09-26 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: R5C7.
4. R5C7 rules out cells in its row, column, color region, and touching neighborhood.
5. Region 7 has only one safe cell left: R7C8.
6. R7C8 rules out cells in its row, column, color region, and touching neighborhood.
7. Region 9 has only one safe cell left: R9C9.
8. R9C9 rules out cells in its row, column, color region, and touching neighborhood.
9. A cat at R1C1 leaves no valid completion, so exclude it.
10. A cat at R1C4 leaves no valid completion, so exclude it.
11. A cat at R1C5 leaves no valid completion, so exclude it.
12. A cat at R1C6 leaves no valid completion, so exclude it.
13. Row 1 has only one safe cell left: R1C3.
14. R1C3 rules out cells in its row, column, color region, and touching neighborhood.
15. Row 2 has only one safe cell left: R2C6.
16. R2C6 rules out cells in its row, column, color region, and touching neighborhood.
17. Region 8 has only one safe cell left: R8C5.
18. R8C5 rules out cells in its row, column, color region, and touching neighborhood.
19. Row 4 has only one safe cell left: R4C4.
20. R4C4 rules out cells in its row, column, color region, and touching neighborhood.
21. Row 6 has only one safe cell left: R6C1.