Step-by-Step Solution

for Tuesday 14th October Tricky

For row 3, number 1 is only possible in cell (2,3)

Single Position

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

Single Position

For row 8, number 1 is only possible in cell (5,8)

Single Position

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

Single Position

For row 3, number 9 is only possible in cell (4,3)

Single Position

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

Single Position

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

Single Position

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

Single Position

For column 4, Number 5 is only possible in cell (4,9)

Single Position

For column 7, Number 6 is only possible in cell (7,8)

Single Position

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

Candidate Lines

For row 3, number 8 is only possible in cell (7,3)

Single Position

For box 8, candidates for 4 are all in column 6, so you can remove candidates from other blocks.

Candidate Lines

For box 6, candidates for 2 are all in row 5, so you can remove candidates from other blocks.

Candidate Lines

For box 9, candidates for 5 are all in row 8, so you can remove candidates from other blocks.

Candidate Lines

For box 4, candidates for 6 are all in row 5, so you can remove candidates from other blocks.

Candidate Lines

For box 8, candidates for 6 are all in row 9, so you can remove candidates from other blocks.

Candidate Lines

Candidates for 7 in boxes 1 and 2 force the candidates in box 3 to be in the remaining line.

Multiple Lines

Candidates for 3 in boxes 1 and 2 force the candidates in box 3 to be in the remaining line.

Multiple Lines

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

For row 2, number 9 is only possible in cell (1,2)

Single Position

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

Single Position

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

Single Position

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Position

For row 1, number 6 is only possible in cell (4,1)

Single Position

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

Single Position

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate