Step-by-Step Solution

for Tuesday 4th November Fiendish

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

Single Candidate

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

Single Candidate

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

Single Candidate

For row 1, number 5 is only possible in cell (4,1)

Single Position

For row 6, number 5 is only possible in cell (3,6)

Single Position

For row 8, number 5 is only possible in cell (1,8)

Single Position

For row 9, number 5 is only possible in cell (8,9)

Single Position

For row 9, number 1 is only possible in cell (7,9)

Single Position

For row 7, number 2 is only possible in cell (8,7)

Single Position

For column 1, Number 2 is only possible in cell (1,1)

Single Position

For column 3, Number 2 is only possible in cell (3,4)

Single Position

For box 3, candidates for 4 are all in row 2, so you can remove candidates from other blocks.

Candidate Lines

Number 6 is the only value possible in cell (3,2).

Single Candidate

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

Single Position

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

Multiple Lines

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

Single Candidate

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

Single Candidate

For column 8, Number 3 is only possible in cell (8,6)

Single Position

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

Double Pairs

X-Wing in columns for 7.

X-Wings

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

Single Candidate

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

Single Candidate

Number 7 is the only value possible in cell (4,8).

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

Number 4 is the only value possible in cell (9,2).

Single Candidate

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

Single Candidate

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

Single Candidate

Number 6 is the only value possible in cell (1,5).

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

Number 1 is the only value possible in cell (4,5).

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

Number 7 is the only value possible in cell (3,1).

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate