Step-by-Step Solution

for Saturday 1st November Diabolical

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

Single Position

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

Single Position

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

Single Position

For row 8, number 6 is only possible in cell (3,8)

Single Position

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

Single Position

For column 3, Number 1 is only possible in cell (3,7)

Single Position

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

Single Candidate

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

Single Position

For row 8, number 5 is only possible in cell (2,8)

Single Position

For column 3, Number 5 is only possible in cell (3,1)

Single Position

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

Single Position

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

Single Position

Number 9 is the only value possible in cell (1,2).

Single Candidate

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

Single Candidate

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

Single Position

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

For column 8, Number 4 is only possible in cell (8,1)

Single Position

For column 9, Number 4 is only possible in cell (9,8)

Single Position

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

For box 2, candidates for 9 are all in row 1, so you can remove candidates from other blocks.

Candidate Lines

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

Candidate Lines

Candidates for 3 in boxes 5 and 8 force the candidates in box 2 to be in the remaining line.

Multiple Lines

Naked Pair for 1 and 5, can remove these as candidates from other cells.

Naked Pairs

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

Hidden Pairs

Either candidate for cell (9,4) forces 8 into cell (3,4).

Forcing Chains

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

Number 2 is the only value possible in cell (8,3).

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

Number 2 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 5 is the only value possible in cell (7,6).

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate