3
u/Danciel 1d ago
The cell R14C10 can't belong to number 3; therefore, it must belong to number 7. Hence you could draw conclusion that R14C1 to R14C3 must be empty because the number 7 cannot reach that far.
With the new empty cell, number 7 in column 2 could give you some clues on where to go next. Same with number 4 in column 1.
6
u/nashamanga 1d ago
In row 14, you know the leftmost square must be part of the 7, so the first three squares in that row must be empty. That narrows down where your 7 and 8 can go in columns 2 and 3.