Step-by-Step Solution

for Wednesday 17th June Tricky

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

Single Position

For row 7, number 3 is only possible in cell (6,7)

Single Position

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

Single Candidate

For row 2, number 5 is only possible in cell (5,2)

Single Position

For column 5, Number 3 is only possible in cell (5,6)

Single Position

For row 3, number 6 is only possible in cell (2,3)

Single Position

For row 1, number 6 is only possible in cell (5,1)

Single Position

For row 4, number 6 is only possible in cell (8,4)

Single Position

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

Single Position

For row 7, number 6 is only possible in cell (1,7)

Single Position

For row 8, number 6 is only possible in cell (7,8)

Single Position

For box 7, candidates for 9 are all in column 2, so you can remove candidates from other blocks.

Candidate Lines

For box 1, candidates for 4 are all in row 2, so you can remove candidates from other blocks.

Candidate Lines

For box 3, candidates for 7 are all in column 8, so you can remove candidates from other blocks.

Candidate Lines

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

Candidate Lines

Naked Pair for 1 and 2, can remove these as candidates from other cells.

Naked Pairs

Candidates for 2 in boxes 1 and 2 force the candidates in box 3 to be in the remaining line.

Multiple Lines

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

For row 6, number 4 is only possible in cell (2,6)

Single Position

For row 2, number 4 is only possible in cell (3,2)

Single Position

For row 5, number 3 is only possible in cell (9,5)

Single Position

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

Naked Pairs

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

Number 9 is the only value possible in cell (1,6).

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

Number 1 is the only value possible in cell (5,9).

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

Number 7 is the only value possible in cell (5,8).

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate