Step-by-Step Solution

for Tuesday 9th June Fiendish

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Position

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

Single Position

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

Single Position

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

Single Position

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

Single Position

For row 7, number 4 is only possible in cell (6,7)

Single Position

For row 9, number 6 is only possible in cell (3,9)

Single Position

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

Single Position

For box 1, candidates for 4 are all in column 1, so you can remove candidates from other blocks.

Candidate Lines

Hidden Pair for 3 and 9, can remove other candidates from these cells.

Hidden Pairs

For box 7, candidates for 2 are all in row 9, so you can remove candidates from other blocks.

Candidate Lines

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

Candidate Lines

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

Single Position

For row 2, number 9 is only possible in cell (6,2)

Single Position

For row 1, number 9 is only possible in cell (8,1)

Single Position

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

Single Position

For row 5, number 2 is only possible in cell (1,5)

Single Position

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

Single Candidate

Number 4 is the only value possible in cell (1,3).

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

Candidates for 8 in boxes 4 and 5 force the candidates in box 6 to be in the remaining line.

Multiple Lines

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

Hidden Pairs

For row 6, number 1 is only possible in cell (9,6)

Single Position

Number 9 is the only value possible in cell (7,4).

Single Candidate

Number 3 is the only value possible in cell (1,4).

Single Candidate

Number 1 is the only value possible in cell (3,4).

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

Number 2 is the only value possible in cell (4,6).

Single Candidate

Number 3 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 1 is the only value possible in cell (4,8).

Single Candidate

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

Single Candidate

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

Single Candidate