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

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

Number 2 is the only value possible in cell (1,4).

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

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

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

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

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

For row 9, number 8 is only possible in cell (4,9)

For column 3, Number 4 is only possible in cell (3,8)

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

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

For row 6, number 1 is only possible in cell (3,6)

For row 6, number 8 is only possible in cell (2,6)

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

For row 8, number 9 is only possible in cell (7,8)

For row 7, number 9 is only possible in cell (6,7)

For column 2, Number 5 is only possible in cell (2,4)

For column 7, Number 5 is only possible in cell (7,6)

Number 4 is the only value possible in cell (8,6).

For column 7, Number 4 is only possible in cell (7,2)

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

For row 9, number 7 is only possible in cell (2,9)

For column 3, Number 7 is only possible in cell (3,1)

Naked Pair for 2 and 6, can remove these as candidates from other cells.

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

For row 9, number 1 is only possible in cell (6,9)

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

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

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

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

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

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

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

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

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

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

Number 1 is the only value possible in cell (4,3).

Number 7 is the only value possible in cell (8,3).

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

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

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

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

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

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

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

Number 2 is the only value possible in cell (8,7).

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

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

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

Number 2 is the only value possible in cell (5,9).

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

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