For row 6, number 9 is only possible in cell (3,6)

For row 1, number 9 is only possible in cell (1,1)

For row 9, number 9 is only possible in cell (7,9)

For row 8, number 1 is only possible in cell (3,8)

For row 8, number 7 is only possible in cell (4,8)

For column 3, Number 4 is only possible in cell (3,4)

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

For column 7, Number 4 is only possible in cell (7,3)

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

For column 5, Number 2 is only possible in cell (5,3)

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

Number 6 is the only value possible in cell (5,2).

Number 3 is the only value possible in cell (9,8).

Number 6 is the only value possible in cell (7,8).

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

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

Number 2 is the only value possible in cell (3,7).

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

For row 1, number 2 is only possible in cell (2,1)

For column 2, Number 1 is only possible in cell (2,3)

For box 2, candidates for 1 are all in column 6, so you can remove candidates from other blocks.

For box 2, candidates for 5 are all in column 6, so you can remove candidates from other blocks.

For box 3, candidates for 5 are all in column 8, so you can remove candidates from other blocks.

Naked Triple for 2, 3 and 8, can remove these as candidates from other cells.

For column 8, Number 3 is only possible in cell (8,1)

Number 1 is the only value possible in cell (7,2).

Number 8 is the only value possible in cell (7,1).

Number 5 is the only value possible in cell (3,1).

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

Number 5 is the only value possible in cell (6,2).

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

Number 5 is the only value possible in cell (8,3).

Number 2 is the only value possible in cell (7,4).

Number 7 is the only value possible in cell (1,4).

Number 3 is the only value possible in cell (1,2).

Number 7 is the only value possible in cell (3,2).

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

Number 8 is the only value possible in cell (6,5).

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

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

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

Number 3 is the only value possible in cell (2,5).

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

Number 4 is the only value possible in cell (9,5).

Number 1 is the only value possible in cell (8,5).

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

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

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

Number 3 is the only value possible in cell (7,6).

Number 5 is the only value possible in cell (9,6).

Number 7 is the only value possible in cell (2,9).

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

Number 6 is the only value possible in cell (4,9).

Number 2 is the only value possible in cell (6,9).

Number 4 is the only value possible in cell (8,9).

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