Number 8 is the only value possible in cell (1,2).

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

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

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

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

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

For box 3, candidates for 6 are all in column 7, so you can remove candidates from other blocks.

Hidden Pair for 1 and 8, can remove other candidates from these cells.

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

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

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

Number 8 is the only value possible in cell (4,1).

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

Number 6 is the only value possible in cell (7,1).

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

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

Number 6 is the only value possible in cell (2,3).

Number 2 is the only value possible in cell (1,6).

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

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

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

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

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

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

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

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

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

For row 6, number 4 is only possible in cell (6,6)

For box 6, candidates for 5 are all in row 4, so you can remove candidates from other blocks.

For box 6, candidates for 2 are all in row 4, so you can remove candidates from other blocks.

Naked Pair for 7 and 9, can remove these as candidates from other cells.

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

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

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

Number 4 is the only value possible in cell (7,3).

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

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

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

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

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

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

Number 7 is the only value possible in cell (4,3).

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

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

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

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

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

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

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

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

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

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

Number 3 is the only value possible in cell (4,5).

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

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

Number 9 is the only value possible in cell (5,7).

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

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

Number 7 is the only value possible in cell (6,9).

Number 3 is the only value possible in cell (7,9).