Step-by-Step Solution

for Thursday 26th March Fiendish

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

Single Position

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

For row 4, number 6 is only possible in cell (3,4)

Single Position

For row 5, number 6 is only possible in cell (4,5)

Single Position

For row 7, number 6 is only possible in cell (8,7)

Single Position

For row 2, number 6 is only possible in cell (7,2)

Single Position

For column 9, Number 1 is only possible in cell (9,3)

Single Position

For column 6, Number 5 is only possible in cell (6,2)

Single Position

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

Single Position

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

Single Position

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

Single Position

For row 7, number 4 is only possible in cell (9,7)

Single Position

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

Single Candidate

For column 1, Number 4 is only possible in cell (1,5)

Single Position

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

Single Position

Candidates for 8 in boxes 4 and 7 force the candidates in box 1 to be in the remaining line.

Multiple Lines

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

Naked Pairs

X-Wing in rows for 3.

X-Wings

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

Single Candidate

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

Single Candidate

Number 8 is the only value possible in cell (1,2).

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

Number 8 is the only value possible in cell (7,1).

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

Number 9 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 5 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 8 is the only value possible in cell (2,6).

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

Number 9 is the only value possible in cell (5,6).

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate