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 3, number 3 is only possible in cell (8,3)









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









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









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









For row 2, number 7 is only possible in cell (8,2)









For row 3, number 6 is only possible in cell (5,3)









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









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









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









For box 3, candidates for 8 are all in column 9, so you can remove candidates from other blocks.









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









Naked Pair for 4 and 9, can remove these as candidates from other cells.









For box 2, candidates for 9 are all in column 6, so you can remove candidates from other blocks.









For box 3, candidates for 4 are all in column 9, so you can remove candidates from other blocks.









Naked Pair for 1 and 8, can remove these as candidates from other cells.









Number 2 is the only value possible in cell (5,1).









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









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









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









Number 9 is the only value possible in cell (6,2).









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









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









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









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









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









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









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









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









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









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









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









For row 9, number 7 is only possible in cell (5,9)









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









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









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









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









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









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









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









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









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









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









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









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









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









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









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









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









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









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









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









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









Number 9 is the only value possible in cell (8,4).









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









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









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









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









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









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









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









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









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