Step-by-Step Solution

for Tuesday 5th November Fiendish

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

Number 8 is the only value possible in cell (4,5).

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

Number 3 is the only value possible in cell (6,9).

Single Candidate

For row 4, number 1 is only possible in cell (3,4)

Single Position

For row 8, number 1 is only possible in cell (4,8)

Single Position

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

Single Candidate

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

Single Position

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

Candidate Lines

Hidden Pair for 4 and 8, can remove other candidates from these cells.

Hidden Pairs

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

Candidate Lines

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

Hidden Pairs

For box 3, candidates for 8 are all in column 9, so you can remove candidates from other blocks.

Candidate Lines

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

Single Candidate

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

Single Position

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

Single Candidate

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

Single Candidate

For row 7, number 9 is only possible in cell (2,7)

Single Position

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

Single Position

For row 7, number 2 is only possible in cell (3,7)

Single Position

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

Single Position

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

Single Position

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

Single Candidate

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

Single Candidate

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

Single Candidate

For row 6, number 5 is only possible in cell (7,6)

Single Position

For column 9, Number 7 is only possible in cell (9,5)

Single Position

Number 6 is the only value possible in cell (3,5).

Single Candidate

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

Single Candidate

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

Single Candidate

Number 4 is the only value possible in cell (7,1).

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

Number 8 is the only value possible in cell (9,3).

Single Candidate

Number 4 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 7 is the only value possible in cell (3,6).

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate