Step-by-Step Solution

for Tuesday 2nd December Tricky

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

For column 2, Number 1 is only possible in cell (2,7)

Single Position

For row 2, number 8 is only possible in cell (1,2)

Single Position

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

Single Position

For column 2, Number 4 is only possible in cell (2,1)

Single Position

For column 1, Number 4 is only possible in cell (1,7)

Single Position

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

Single Position

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

Candidate Lines

Candidates for 7 in boxes 1 and 3 force the candidates in box 2 to be in the remaining line.

Multiple Lines

Hidden Pair for 7 and 8, can remove other candidates from these cells.

Hidden Pairs

For row 8, number 9 is only possible in cell (2,8)

Single Position

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

Single Candidate

Number 7 is the only value possible in cell (3,1).

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Position

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

Single Position

For row 2, number 9 is only possible in cell (5,2)

Single Position

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

Single Position

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

Single Position

For row 2, number 7 is only possible in cell (6,2)

Single Position

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

Single Position

For row 5, number 7 is only possible in cell (4,5)

Single Position

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

Number 2 is the only value possible in cell (5,7).

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

Number 4 is the only value possible in cell (8,3).

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

Number 2 is the only value possible in cell (7,5).

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

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

Single Candidate

Number 3 is the only value possible in cell (8,9).

Single Candidate