For column 3, Number 6 is only possible in cell (3,7)

For row 9, number 4 is only possible in cell (2,9)

For column 5, Number 4 is only possible in cell (5,3)

For row 1, number 8 is only possible in cell (2,1)

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

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

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

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

For box 9, candidates for 1 are all in row 9, so you can remove candidates from other blocks.

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

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

For row 1, number 6 is only possible in cell (6,1)

For row 7, number 1 is only possible in cell (4,7)

For row 7, number 8 is only possible in cell (5,7)

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

Number 3 is the only value possible in cell (6,5).

Number 8 is the only value possible in cell (4,5).

For row 7, number 2 is only possible in cell (6,7)

For column 6, Number 7 is only possible in cell (6,3)

Number 1 is the only value possible in cell (7,3).

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

For row 9, number 1 is only possible in cell (8,9)

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

For row 1, number 5 is only possible in cell (4,1)

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

Number 9 is the only value possible in cell (4,2).

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

Number 3 is the only value possible in cell (4,9).

Number 7 is the only value possible in cell (1,9).

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

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

Number 5 is the only value possible in cell (2,7).

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

Number 8 is the only value possible in cell (1,6).

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

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

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

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

Number 9 is the only value possible in cell (8,5).

Number 7 is the only value possible in cell (2,5).

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

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

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

Number 4 is the only value possible in cell (3,6).

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

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

Number 4 is the only value possible in cell (7,5).

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

Number 4 is the only value possible in cell (9,2).

Number 5 is the only value possible in cell (7,4).

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

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

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

Number 3 is the only value possible in cell (1,8).

Number 1 is the only value possible in cell (3,8).

Number 5 is the only value possible in cell (9,8).

Number 9 is the only value possible in cell (6,8).

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

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