Step-by-Step Solution

for Wednesday 26th March Fiendish

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

Single Candidate

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

Single Position

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

Single Position

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

Single Position

For column 2, Number 7 is only possible in cell (2,3)

Single Position

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

Single Position

For row 5, number 6 is only possible in cell (2,5)

Single Position

For column 2, Number 9 is only possible in cell (2,8)

Single Position

For box 5, candidates for 9 are all in column 4, so you can remove candidates from other blocks.

Candidate Lines

For box 3, candidates for 7 are all in column 9, so you can remove candidates from other blocks.

Candidate Lines

For box 1, candidates for 8 are all in row 1, so you can remove candidates from other blocks.

Candidate Lines

For box 1, candidates for 5 are all in row 1, so you can remove candidates from other blocks.

Candidate Lines

For box 6, candidates for 4 are all in column 7, so you can remove candidates from other blocks.

Candidate Lines

For box 5, candidates for 1 are all in row 6, so you can remove candidates from other blocks.

Candidate Lines

For box 5, candidates for 3 are all in row 4, so you can remove candidates from other blocks.

Candidate Lines

For box 9, candidates for 3 are all in row 9, so you can remove candidates from other blocks.

Candidate Lines

Candidates for 8 in boxes 1 and 4 force the candidates in box 7 to be in the remaining line.

Multiple Lines

Naked Pair for 4 and 9, can remove these as candidates from other cells.

Naked Pairs

Naked Pair for 8 and 9, can remove these as candidates from other cells.

Naked Pairs

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

Single Candidate

For row 5, number 9 is only possible in cell (1,5)

Single Position

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

Single Position

For column 1, Number 3 is only possible in cell (1,8)

Single Position

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

Single Position

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

Single Candidate

For column 1, Number 1 is only possible in cell (1,9)

Single Position

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

Number 2 is the only value possible in cell (5,1).

Single Candidate

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

Single Candidate

Number 9 is the only value possible in cell (8,1).

Single Candidate

Number 8 is the only value possible in cell (6,3).

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate