Number 9 is the only value possible in cell (6,3).

For row 5, number 1 is only possible in cell (3,5)

For row 6, number 6 is only possible in cell (6,6)

For column 1, Number 8 is only possible in cell (1,4)

For column 5, Number 7 is only possible in cell (5,8)

Number 8 is the only value possible in cell (4,7).

For column 6, Number 8 is only possible in cell (6,2)

Candidates for 3 in boxes 1 and 2 force the candidates in box 3 to be in the remaining line.

Naked Pair for 5 and 7, can remove these as candidates from other cells.

For row 4, number 7 is only possible in cell (4,4)

Number 2 is the only value possible in cell (4,6).

Number 5 is the only value possible in cell (6,4).

Number 3 is the only value possible in cell (5,5).

Number 4 is the only value possible in cell (5,1).

Number 3 is the only value possible in cell (4,2).

Number 2 is the only value possible in cell (5,2).

Number 4 is the only value possible in cell (4,8).

Number 2 is the only value possible in cell (6,8).

Number 5 is the only value possible in cell (5,9).

For row 9, number 2 is only possible in cell (2,9)

Number 5 is the only value possible in cell (2,5).

Number 8 is the only value possible in cell (7,5).

Number 2 is the only value possible in cell (8,5).

Number 3 is the only value possible in cell (8,4).

Number 4 is the only value possible in cell (9,4).

Number 2 is the only value possible in cell (3,4).

Number 7 is the only value possible in cell (2,6).

Number 6 is the only value possible in cell (2,2).

Number 9 is the only value possible in cell (3,1).

Number 3 is the only value possible in cell (1,1).

Number 8 is the only value possible in cell (8,1).

Number 6 is the only value possible in cell (9,1).

Number 4 is the only value possible in cell (3,2).

Number 4 is the only value possible in cell (1,6).

Number 3 is the only value possible in cell (2,8).

Number 6 is the only value possible in cell (3,8).

Number 9 is the only value possible in cell (1,9).

Number 3 is the only value possible in cell (9,9).

Number 5 is the only value possible in cell (9,3).

Number 9 is the only value possible in cell (8,2).

Number 1 is the only value possible in cell (9,2).

Number 7 is the only value possible in cell (7,2).

Number 5 is the only value possible in cell (1,2).

Number 7 is the only value possible in cell (3,3).

Number 3 is the only value possible in cell (7,3).

Number 9 is the only value possible in cell (9,6).

Number 5 is the only value possible in cell (7,6).

Number 5 is the only value possible in cell (3,7).

Number 1 is the only value possible in cell (7,7).

Number 7 is the only value possible in cell (1,7).

Number 1 is the only value possible in cell (1,8).

Number 9 is the only value possible in cell (7,8).

Number 5 is the only value possible in cell (8,8).

Number 8 is the only value possible in cell (9,8).

Number 4 is the only value possible in cell (7,9).