2026-09-23 daily answer

Step-by-step reasoning

1. Region 2 has only one safe cell left: R2C4.
2. R2C4 rules out cells in its row, column, color region, and touching neighborhood.
3. Region 3 has only one safe cell left: R3C2.
4. R3C2 rules out cells in its row, column, color region, and touching neighborhood.
5. Region 4 has only one safe cell left: R4C7.
6. R4C7 rules out cells in its row, column, color region, and touching neighborhood.
7. A cat at R1C6 leaves no valid completion, so exclude it.
8. Row 1 has only one safe cell left: R1C1.
9. R1C1 rules out cells in its row, column, color region, and touching neighborhood.
10. A cat at R5C3 leaves no valid completion, so exclude it.
11. Row 5 has only one safe cell left: R5C5.
12. R5C5 rules out cells in its row, column, color region, and touching neighborhood.
13. Row 6 has only one safe cell left: R6C3.
14. R6C3 rules out cells in its row, column, color region, and touching neighborhood.
15. Row 7 has only one safe cell left: R7C6.