Step-by-Step Solution

for Sunday 13th April Tricky

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

Single Position

For column 7, Number 9 is only possible in cell (7,4)

Single Position

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

Single Position

For row 5, number 2 is only possible in cell (1,5)

Single Position

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

Single Candidate

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

Single Candidate

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

Single Position

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

Single Position

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

Single Position

For row 5, number 3 is only possible in cell (4,5)

Single Position

For row 6, number 3 is only possible in cell (8,6)

Single Position

For row 4, number 3 is only possible in cell (1,4)

Single Position

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

Single Position

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

Single Position

For column 3, Number 2 is only possible in cell (3,9)

Single Position

Number 7 is the only value possible in cell (2,8).

Single Candidate

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

Single Position

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

Candidate Lines

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

Single Position

Candidates for 4 in boxes 2 and 5 force the candidates in box 8 to be in the remaining line.

Multiple Lines

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

Single Candidate

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

Single Candidate

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

Single Position

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

Single Candidate

Number 4 is the only value possible in cell (6,2).

Single Candidate

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

Single Candidate

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

Single Position

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

Single Position

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

Number 1 is the only value possible in cell (4,3).

Single Candidate

Number 4 is the only value possible in cell (1,3).

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

Number 5 is the only value possible in cell (9,1).

Single Candidate

Number 1 is the only value possible in cell (9,6).

Single Candidate

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

Single Candidate

Number 5 is the only value possible in cell (8,7).

Single Candidate

Number 2 is the only value possible in cell (7,8).

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate