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 4 is only possible in cell (7,1)









For row 6, number 4 is only possible in cell (2,6)









For row 6, number 9 is only possible in cell (1,6)









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









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









Number 3 is the only value possible in cell (6,5).









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









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









For row 6, number 7 is only possible in cell (9,6)









For row 4, number 7 is only possible in cell (3,4)









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









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









For row 7, number 4 is only possible in cell (3,7)









For row 8, number 4 is only possible in cell (5,8)









For box 8, Number 9 is only possible in cell (6,8)









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









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









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









For blocks 4 and 7, candidates for 6 are all in the same two columns (1 and 2)









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









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









Hidden Pair for 6 and 8, can remove other candidates from these cells.









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









Naked Pair for 1 and 5, can remove these as candidates from other cells.









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









For column 9, Number 8 is only possible in cell (9,3)









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









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









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









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









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









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









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









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









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









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









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









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









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









Number 6 is the only value possible in cell (1,4).









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









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









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









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









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









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









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









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









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









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









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









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









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









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









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









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









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









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









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









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