Step-by-Step Solution
for Saturday 29th June Medium


Before

Step

After


Sudoku puzzle
First step:
Add in all possible valid pencilmarks.
Sudoku puzzle

Sudoku puzzle

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

Single Candidate

Sudoku puzzle

Sudoku puzzle

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

Single Candidate

Sudoku puzzle

Sudoku puzzle

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

Single Candidate

Sudoku puzzle

Sudoku puzzle

Number 1 is the only value possible in cell (5,7).

Single Candidate

Sudoku puzzle

Sudoku puzzle

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

Single Position

Sudoku puzzle

Sudoku puzzle

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

Single Position

Sudoku puzzle

Sudoku puzzle

For column 2, Number 1 is only possible in cell (2,8)

Single Position

Sudoku puzzle

Sudoku puzzle

For column 4, Number 9 is only possible in cell (4,1)

Single Position

Sudoku puzzle

Sudoku puzzle

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

Single Position

Sudoku puzzle

Sudoku puzzle

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

Single Position

Sudoku puzzle

Sudoku puzzle

For row 2, number 9 is only possible in cell (7,2)

Single Position

Sudoku puzzle

Sudoku puzzle

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

Single Position

Sudoku puzzle

Sudoku puzzle

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

Single Position

Sudoku puzzle

Sudoku puzzle

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

Single Position

Sudoku puzzle

Sudoku puzzle

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

Single Position

Sudoku puzzle

Sudoku puzzle

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

Single Position

Sudoku puzzle

Sudoku puzzle

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

Single Position

Sudoku puzzle

Sudoku puzzle

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

Single Position

Sudoku puzzle

Sudoku puzzle

For column 6, Number 2 is only possible in cell (6,4)

Single Position

Sudoku puzzle

Sudoku puzzle

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

Single Candidate

Sudoku puzzle

Sudoku puzzle

For column 9, Number 3 is only possible in cell (9,5)

Single Position

Sudoku puzzle

Sudoku puzzle

For row 5, number 2 is only possible in cell (7,5)

Single Position

Sudoku puzzle

Sudoku puzzle

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

Single Position

Sudoku puzzle

Sudoku puzzle

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

Single Position

Sudoku puzzle

Sudoku puzzle

For row 3, number 2 is only possible in cell (9,3)

Single Position

Sudoku puzzle

Sudoku puzzle

For row 7, number 2 is only possible in cell (8,7)

Single Position

Sudoku puzzle

Sudoku puzzle

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

Single Candidate

Sudoku puzzle

Sudoku puzzle

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

Single Candidate

Sudoku puzzle

Sudoku puzzle

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

Single Position

Sudoku puzzle

Sudoku puzzle

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

Single Candidate

Sudoku puzzle

Sudoku puzzle

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

Single Position

Sudoku puzzle

Sudoku puzzle

For row 5, number 4 is only possible in cell (2,5)

Single Position

Sudoku puzzle

Sudoku puzzle

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

Single Position

Sudoku puzzle

Sudoku puzzle

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

Single Candidate

Sudoku puzzle

Sudoku puzzle

Number 3 is the only value possible in cell (2,4).

Single Candidate

Sudoku puzzle

Sudoku puzzle

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

Single Candidate

Sudoku puzzle

Sudoku puzzle

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

Single Candidate

Sudoku puzzle

Sudoku puzzle

Number 5 is the only value possible in cell (7,3).

Single Candidate

Sudoku puzzle

Sudoku puzzle

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

Single Candidate

Sudoku puzzle

Sudoku puzzle

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

Single Candidate

Sudoku puzzle

Sudoku puzzle

Number 7 is the only value possible in cell (9,2).

Single Candidate

Sudoku puzzle

Sudoku puzzle

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

Single Candidate

Sudoku puzzle

Sudoku puzzle

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

Single Candidate

Sudoku puzzle

Sudoku puzzle

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

Single Candidate

Sudoku puzzle

Sudoku puzzle

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

Single Candidate

Sudoku puzzle

Sudoku puzzle

Number 6 is the only value possible in cell (7,8).

Single Candidate

Sudoku puzzle

Sudoku puzzle

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

Single Candidate

Sudoku puzzle

Sudoku puzzle

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

Single Candidate

Sudoku puzzle

Sudoku puzzle

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

Single Candidate

Sudoku puzzle

Sudoku puzzle

Number 8 is the only value possible in cell (1,5).

Single Candidate

Sudoku puzzle

Sudoku puzzle

Number 5 is the only value possible in cell (1,7).

Single Candidate

Sudoku puzzle

Sudoku puzzle

Number 8 is the only value possible in cell (9,7).

Single Candidate

Sudoku puzzle

Sudoku puzzle

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

Single Candidate

Sudoku puzzle

Sudoku puzzle

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

Single Candidate

Sudoku puzzle

Sudoku puzzle

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

Single Candidate

Sudoku puzzle

Sudoku puzzle

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

Single Candidate

Sudoku puzzle


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