Astraware Sudoku - It's a different kind of Zen

Step-By-Step Solution:

Initial Grid

                    
First step - add in all possible valid pencilmarks.




For column 3, Number 6 is only possible in cell (3,4)









For row 9, number 8 is only possible in cell (3,9)









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









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









For row 5, number 8 is only possible in cell (2,5)









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









For column 7, Number 1 is only possible in cell (7,6)









For column 7, Number 6 is only possible in cell (7,8)









For column 1, Number 2 is only possible in cell (1,3)









For box 8, Number 2 is only possible in cell (5,7)









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









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









For box 2, candidates for 7 are all in column 5, so you can remove candidates from other blocks.









For box 7, candidates for 9 are all in column 3, so you can remove candidates from other blocks.









For box 8, candidates for 9 are all in column 4, so you can remove candidates from other blocks.









For box 8, candidates for 5 are all in column 4, 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.









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









Naked Pair for 3 and 5, can remove these as candidates from other cells.









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









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









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









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









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









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









Number 3 is the only value possible in cell (2,1).









Number 5 is the only value possible in cell (6,1).









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









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









Number 3 is the only value possible in cell (6,2).









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









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









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









Number 5 is the only value possible in cell (3,2).









Number 1 is the only value possible in cell (2,3).









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









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









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









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









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









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









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









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









Number 9 is the only value possible in cell (6,5).









Number 2 is the only value possible in cell (8,5).









Number 7 is the only value possible in cell (1,6).









Number 3 is the only value possible in cell (4,6).









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









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









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









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









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









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









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









Number 5 is the only value possible in cell (4,8).









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









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









Number 5 is the only value possible in cell (8,9).