Step-by-Step Solution

for Thursday 5th June Fiendish

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

Single Position

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

Single Position

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

Single Position

For row 1, number 7 is only possible in cell (3,1)

Single Position

For row 8, number 7 is only possible in cell (1,8)

Single Position

For row 5, number 7 is only possible in cell (2,5)

Single Position

For column 3, Number 4 is only possible in cell (3,5)

Single Position

For column 3, Number 9 is only possible in cell (3,4)

Single Position

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

Candidate Lines

For box 5, candidates for 9 are all in row 6, so you can remove candidates from other blocks.

Candidate Lines

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

Candidate Lines

For box 7, candidates for 1 are all in row 9, so you can remove candidates from other blocks.

Candidate Lines

For box 5, candidates for 8 are all in column 6, so you can remove candidates from other blocks.

Candidate Lines

For blocks 1 and 7, candidates for 1 are all in the same two columns (2 and 3)

Double Pairs

For blocks 3 and 9, candidates for 1 are all in the same two columns (7 and 8)

Double Pairs

Candidates for 2 in boxes 4 and 5 force the candidates in box 6 to be in the remaining line.

Multiple Lines

Hidden Pair for 2 and 9, can remove other candidates from these cells.

Hidden Pairs

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

Single Position

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

Single Candidate

For row 3, number 7 is only possible in cell (4,3)

Single Position

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

Single Position

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

Number 2 is the only value possible in cell (9,3).

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

Number 1 is the only value possible in cell (9,4).

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

Number 9 is the only value possible in cell (4,6).

Single Candidate

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

Single Candidate

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

Single Candidate

Number 4 is the only value possible in cell (9,6).

Single Candidate

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

Single Candidate

Number 5 is the only value possible in cell (1,7).

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

Number 1 is the only value possible in cell (3,9).

Single Candidate

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

Single Candidate

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

Single Candidate