Step-by-Step Solution

for Wednesday 16th July Tricky

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

For row 6, number 4 is only possible in cell (5,6)

Single Position

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

Single Position

For column 1, Number 5 is only possible in cell (1,3)

Single Position

For column 3, Number 5 is only possible in cell (3,8)

Single Position

For column 2, Number 6 is only possible in cell (2,4)

Single Position

For column 5, Number 6 is only possible in cell (5,8)

Single Position

For row 9, number 6 is only possible in cell (8,9)

Single Position

For box 8, candidates for 7 are all in row 7, so you can remove candidates from other blocks.

Candidate Lines

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

For column 5, Number 9 is only possible in cell (5,3)

Single Position

For box 7, candidates for 1 are all in column 2, so you can remove candidates from other blocks.

Candidate Lines

For box 1, candidates for 1 are all in column 3, so you can remove candidates from other blocks.

Candidate Lines

Candidates for 2 in boxes 1 and 7 force the candidates in box 4 to be in the remaining line.

Multiple Lines

Naked Pair for 1 and 3, can remove these as candidates from other cells.

Naked Pairs

Naked Pair for 1 and 7, can remove these as candidates from other cells.

Naked Pairs

For row 5, number 7 is only possible in cell (3,5)

Single Position

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

Number 4 is the only value possible in cell (8,2).

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

Number 7 is the only value possible in cell (6,4).

Single Candidate

Number 2 is the only value possible in cell (5,4).

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate