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 9, number 1 is only possible in cell (3,9)









For row 9, number 4 is only possible in cell (2,9)









For row 2, number 9 is only possible in cell (6,2)









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









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









Number 6 is the only value possible in cell (1,8).









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









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









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









For row 4, number 7 is only possible in cell (2,4)









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









For row 3, number 6 is only possible in cell (7,3)









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









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









For box 1, candidates for 5 are all in row 3, so you can remove candidates from other blocks.









For blocks 2 and 8, candidates for 5 are all in the same two columns (4 and 6)









Naked Pair for 3 and 8, can remove these as candidates from other cells.









For box 1, candidates for 3 are all in column 3, so you can remove candidates from other blocks.









For box 1, candidates for 8 are all in column 3, so you can remove candidates from other blocks.









Naked Pair for 4 and 6, can remove these as candidates from other cells.









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









For column 9, Number 5 is only possible in cell (9,5)









For row 5, number 7 is only possible in cell (6,5)









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









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









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









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









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









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









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









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









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









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









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









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









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









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









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









Number 6 is the only value possible in cell (8,4).









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









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









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









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









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









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









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









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









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









Number 4 is the only value possible in cell (8,6).









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









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









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









Number 3 is the only value possible in cell (6,1).









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









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









Number 8 is the only value possible in cell (3,2).









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









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









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









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









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