Step-by-Step Solution

for Tuesday 15th October Medium

For row 4, number 8 is only possible in cell (1,4)

Single Position

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

Single Position

For row 7, number 9 is only possible in cell (5,7)

Single Position

For row 3, number 9 is only possible in cell (6,3)

Single Position

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

Single Position

For row 3, number 8 is only possible in cell (2,3)

Single Position

For row 1, number 8 is only possible in cell (9,1)

Single Position

For row 9, number 8 is only possible in cell (5,9)

Single Position

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

Single Position

For row 8, number 9 is only possible in cell (1,8)

Single Position

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

Single Position

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

Single Position

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

Single Position

For box 3, Number 7 is only possible in cell (8,1)

Single Position

For row 1, number 5 is only possible in cell (3,1)

Single Position

For row 3, number 6 is only possible in cell (5,3)

Single Position

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

Single Position

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

Single Position

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

Single Position

For box 4, candidates for 3 are all in row 6, so you can remove candidates from other blocks.

Candidate Lines

For box 8, candidates for 2 are all in column 4, so you can remove candidates from other blocks.

Candidate Lines

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

Single Candidate

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

Single Candidate

For row 5, number 4 is only possible in cell (1,5)

Single Position

For row 6, number 4 is only possible in cell (7,6)

Single Position

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

Single Candidate

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

Single Candidate

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

Single Candidate

For row 6, number 7 is only possible in cell (5,6)

Single Position

For row 6, number 5 is only possible in cell (6,6)

Single Position

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

Single Candidate

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

Single Candidate

Number 3 is the only value possible in cell (2,1).

Single Candidate

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

Single Candidate

Number 3 is the only value possible in cell (5,2).

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

Number 1 is the only value possible in cell (8,4).

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

Number 6 is the only value possible in cell (4,7).

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate