Step-by-Step Solution

for Sunday 1st June Diabolical

Number 6 is the only value possible in cell (8,7).

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

For row 1, number 4 is only possible in cell (7,1)

Single Position

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

Single Position

For row 8, number 4 is only possible in cell (3,8)

Single Position

For row 3, number 1 is only possible in cell (7,3)

Single Position

For row 6, number 3 is only possible in cell (7,6)

Single Position

For row 9, number 3 is only possible in cell (5,9)

Single Position

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

Single Position

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

For column 3, Number 6 is only possible in cell (3,9)

Single Position

For box 1, candidates for 9 are all in row 3, so you can remove candidates from other blocks.

Candidate Lines

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

Multiple Lines

Either candidate for cell (2,1) forces 9 into cell (2,3).

Forcing Chains

Either candidate for cell (5,1) forces 3 into cell (2,1).

Forcing Chains

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

Single Candidate

Number 6 is the only value possible in cell (1,3).

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

For row 2, number 3 is only possible in cell (4,2)

Single Position

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

Single Position

Either candidate for cell (5,2) forces 5 into cell (4,1).

Forcing Chains

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

Single Candidate

Either candidate for cell (5,2) forces 9 into cell (1,7).

Forcing Chains

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate