There are two empty tiles in the highlighted column. One missing number is 8.
The highlighted 8 eliminates one tile, the other one must be the missing 8.
Step 35
Simple Elimination
There are two empty tiles in the highlighted row. One missing number is 5.
The highlighted 5 eliminates one of the tiles, the other one must be 5.
Step 36
Single Possiblity in Each Column
There is only one empty tile in each of the three highlighted columns. The missing numbers
for each column are filled in.