1. The problem is to solve the Sudoku puzzle given the partially filled 9x9 grid. 2. Sudoku rules: each row, each column, and each 3x3 subgrid must contain all digits from 1 to 9 without repetition. 3. We focus on the highlighted cell at row 9, column 8 (bottom-right block). 4. Check digits already present in row 9: 6, 7, 9. 5. Check digits in column 8: 2, 4, 6. 6. Check digits in the bottom-right 3x3 block: 5, 6, 7, 9. 7. Combine all digits found: {2,4,5,6,7,9}. 8. Possible digits for the cell are those from 1 to 9 excluding these: {1,3,8}. 9. Since 1, 3, and 8 are not present in the row, column, or block, the cell can be 1, 3, or 8. 10. Further solving the puzzle or using advanced techniques is needed to determine the exact digit. Final answer: The possible digits for the highlighted cell (row 9, column 8) are $\{1,3,8\}$.