Step-by-Step Solution

for Tuesday 28th April Tricky

For row 1, number 7 is only possible in cell (2,1)

Single Position

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

Single Position

For column 9, Number 7 is only possible in cell (9,5)

Single Position

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

Single Position

For column 7, Number 3 is only possible in cell (7,2)

Single Position

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

Single Position

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

Single Position

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

Single Position

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

Single Position

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

Single Position

For row 4, number 2 is only possible in cell (3,4)

Single Position

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

Single Position

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

Single Position

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

Single Position

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

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

Single Candidate

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

Single Candidate

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

Single Position

For row 6, number 7 is only possible in cell (3,6)

Single Position

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

Single Position

For box 1, candidates for 3 are all in row 3, so you can remove candidates from other blocks.

Candidate Lines

For box 3, candidates for 6 are all in column 9, so you can remove candidates from other blocks.

Candidate Lines

For box 9, candidates for 1 are all in row 8, so you can remove candidates from other blocks.

Candidate Lines

Candidates for 5 in boxes 2 and 5 force the candidates in box 8 to be in the remaining line.

Multiple Lines

Naked Pair for 6 and 9, can remove these as candidates from other cells.

Naked Pairs

For column 9, Number 6 is only possible in cell (9,1)

Single Position

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

Single Candidate

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

Single Candidate

Number 6 is the only value possible in cell (5,7).

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

Number 3 is the only value possible in cell (6,9).

Single Candidate