Astraware Sudoku - It's a different kind of Zen

Step-By-Step Solution:

Initial Grid

                    
First step - add in all possible valid pencilmarks.




For row 8, number 3 is only possible in cell (4,8)









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









For box 4, Number 2 is only possible in cell (3,4)









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









For row 7, number 5 is only possible in cell (3,7)









For row 2, number 7 is only possible in cell (3,2)









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









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









For box 9, candidates for 2 are all in column 7, so you can remove candidates from other blocks.









For box 7, candidates for 6 are all in column 1, so you can remove candidates from other blocks.









For box 8, candidates for 7 are all in row 9, so you can remove candidates from other blocks.









Naked Pair for 2 and 4, can remove these as candidates from other cells.









Candidates for 4 in boxes 1 and 4 force the candidates in box 7 to be in the remaining line.









For row 8, number 4 is only possible in cell (7,8)









For box 9, candidates for 1 are all in column 7, so you can remove candidates from other blocks.









Number 6 is the only value possible in cell (7,2).









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









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









For column 6, Number 3 is only possible in cell (6,1)









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









For row 1, number 6 is only possible in cell (4,1)









For row 5, number 6 is only possible in cell (8,5)









For row 7, number 6 is only possible in cell (1,7)









For column 1, Number 8 is only possible in cell (1,9)









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









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









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









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









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









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









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









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









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









For box 6, candidates for 9 are all in column 7, so you can remove candidates from other blocks.









For box 2, candidates for 5 are all in column 5, so you can remove candidates from other blocks.









For box 6, candidates for 4 are all in column 9, so you can remove candidates from other blocks.









Naked Pair for 5 and 9, can remove these as candidates from other cells.









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









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









Number 1 is the only value possible in cell (3,8).









Number 4 is the only value possible in cell (3,5).









Number 9 is the only value possible in cell (3,1).









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









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









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









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









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









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









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









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









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









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









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









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









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









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









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









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









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









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









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









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









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









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









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