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









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









For row 8, number 1 is only possible in cell (9,8)









For row 9, number 1 is only possible in cell (4,9)









For column 8, Number 4 is only possible in cell (8,1)









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









For box 3, Number 2 is only possible in cell (7,1)









For row 1, number 7 is only possible in cell (3,1)









For column 4, Number 7 is only possible in cell (4,5)









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









For row 8, number 7 is only possible in cell (6,8)









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









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









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









For box 6, candidates for 8 are all in row 5, so you can remove candidates from other blocks.









For box 3, candidates for 5 are all in column 9, so you can remove candidates from other blocks.









Naked Pair for 2 and 6, can remove these as candidates from other cells.









For column 2, Number 6 is only possible in cell (2,1)









For box 1, candidates for 2 are all in row 2, so you can remove candidates from other blocks.









Naked Triple for 2, 8 and 9, can remove these as candidates from other cells.









Hidden Pair for 2 and 9, can remove other candidates from these cells.









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









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









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









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









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









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









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









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









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









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









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









Number 8 is the only value possible in cell (4,2).









Number 5 is the only value possible in cell (9,2).









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









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









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









Number 3 is the only value possible in cell (9,7).









Number 2 is the only value possible in cell (3,7).









Number 6 is the only value possible in cell (4,7).









Number 2 is the only value possible in cell (4,3).









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









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









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









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









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









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









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









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









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









Number 2 is the only value possible in cell (6,5).









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









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









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









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









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









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









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









Number 2 is the only value possible in cell (5,9).









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









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