Step-by-Step Solution

for Thursday 27th November Tricky

For row 2, number 8 is only possible in cell (5,2)

Single Position

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

Single Candidate

For column 1, Number 6 is only possible in cell (1,5)

Single Position

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

Single Position

For row 5, number 8 is only possible in cell (3,5)

Single Position

For row 2, number 3 is only possible in cell (6,2)

Single Position

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

Single Position

For row 8, number 5 is only possible in cell (4,8)

Single Position

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

Single Position

For box 8, Number 4 is only possible in cell (6,7)

Single Position

For column 6, Number 7 is only possible in cell (6,5)

Single Position

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

Single Candidate

For box 2, candidates for 5 are all in row 1, so you can remove candidates from other blocks.

Candidate Lines

For box 4, candidates for 3 are all in column 2, so you can remove candidates from other blocks.

Candidate Lines

Naked Pair for 3 and 7, can remove these as candidates from other cells.

Naked Pairs

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

Single Position

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

Multiple Lines

Naked Pair for 3 and 7, can remove these as candidates from other cells.

Naked Pairs

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

Single Candidate

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

Single Position

For blocks 6 and 9, candidates for 7 are all in the same two columns (8 and 9)

Double Pairs

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

Number 9 is the only value possible in cell (3,4).

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

Number 7 is the only value possible in cell (1,2).

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

Number 4 is the only value possible in cell (1,6).

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate