Step-by-Step Solution

for Saturday 18th October Tricky

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

Single Position

For row 3, number 2 is only possible in cell (5,3)

Single Position

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

Single Position

For column 2, Number 5 is only possible in cell (2,3)

Single Position

For row 1, number 5 is only possible in cell (9,1)

Single Position

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

Single Position

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

Single Position

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

Single Position

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

Number 3 is the only value possible in cell (8,7).

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Position

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

Single Position

For column 8, Number 4 is only possible in cell (8,5)

Single Position

For column 7, Number 6 is only possible in cell (7,3)

Single Position

For box 7, candidates for 4 are all in row 7, so you can remove candidates from other blocks.

Candidate Lines

Candidates for 3 in boxes 1 and 4 force the candidates in box 7 to be in the remaining line.

Multiple Lines

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

Number 3 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 6 is the only value possible in cell (2,7).

Single Candidate

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

Single Candidate

Number 9 is the only value possible in cell (4,1).

Single Candidate

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

Single Candidate

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

Single Candidate

Number 5 is the only value possible in cell (6,4).

Single Candidate

Number 6 is the only value possible in cell (5,4).

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

Number 1 is the only value possible in cell (7,4).

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

Number 9 is the only value possible in cell (5,6).

Single Candidate

Number 3 is the only value possible in cell (7,6).

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate