Step-by-Step Solution

for Wednesday 25th February Tricky

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

Single Position

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

Single Position

For column 3, Number 3 is only possible in cell (3,2)

Single Position

For row 6, number 4 is only possible in cell (9,6)

Single Position

For column 9, Number 3 is only possible in cell (9,4)

Single Position

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

Single Position

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

Single Position

For row 9, number 4 is only possible in cell (6,9)

Single Position

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

Candidate Lines

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

Candidate Lines

For box 7, candidates for 1 are all in row 8, so you can remove candidates from other blocks.

Candidate Lines

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

Single Position

For box 3, candidates for 6 are all in row 2, so you can remove candidates from other blocks.

Candidate Lines

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

Single Candidate

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

Candidate Lines

For box 3, candidates for 5 are all in row 3, so you can remove candidates from other blocks.

Candidate Lines

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

Multiple Lines

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

Single Candidate

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

Single Candidate

Number 8 is the only value possible in cell (1,3).

Single Candidate

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

Single Candidate

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

Single Candidate

For row 4, number 8 is only possible in cell (2,4)

Single Position

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

Single Position

For row 9, number 7 is only possible in cell (8,9)

Single Position

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

Single Candidate

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

Single Candidate

For row 9, number 8 is only possible in cell (4,9)

Single Position

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

Single Candidate

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

Single Candidate

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

Single Position

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

Single Position

For row 8, number 9 is only possible in cell (7,8)

Single Position

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

Single Position

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

Single Position

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

Single Position

For row 8, number 6 is only possible in cell (2,8)

Single Position

Number 2 is the only value possible in cell (1,9).

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

Number 1 is the only value possible in cell (3,8).

Single Candidate

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

Single Candidate

Number 9 is the only value possible in cell (4,6).

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate