Step-by-Step Solution

for Thursday 21st November Tricky

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

Single Candidate

For box 9, Number 1 is only possible in cell (9,8)

Single Position

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

Single Position

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

Single Position

For column 8, Number 6 is only possible in cell (8,9)

Single Position

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

Single Position

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

Single Candidate

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

Single Candidate

For row 7, number 9 is only possible in cell (1,7)

Single Position

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

Candidate Lines

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

Candidate Lines

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

Single Candidate

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

Candidate Lines

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

Candidate Lines

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

Multiple Lines

Candidates for 8 in boxes 1 and 3 force the candidates in box 2 to be in the remaining line.

Multiple Lines

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

Single Candidate

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

Single Candidate

Number 1 is the only value possible in cell (7,6).

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

Number 6 is the only value possible in cell (1,2).

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

Number 6 is the only value possible in cell (3,5).

Single Candidate

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

Single Candidate

Number 8 is the only value possible in cell (3,6).

Single Candidate

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

Single Candidate

Number 3 is the only value possible in cell (5,6).

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

Number 9 is the only value possible in cell (4,5).

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

Number 8 is the only value possible in cell (5,3).

Single Candidate

Number 2 is the only value possible in cell (6,3).

Single Candidate

Number 1 is the only value possible in cell (6,7).

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate