Astraware Sudoku - It's a different kind of Zen

Step-By-Step Solution:

Initial Grid

                    
First step - add in all possible valid pencilmarks.




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









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









Number 2 is the only value possible in cell (1,4).









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









Number 2 is the only value possible in cell (6,1).









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









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









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









For row 9, number 8 is only possible in cell (4,9)









For column 3, Number 4 is only possible in cell (3,8)









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









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









For row 6, number 1 is only possible in cell (3,6)









For row 6, number 8 is only possible in cell (2,6)









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









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









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









For column 2, Number 5 is only possible in cell (2,4)









For column 7, Number 5 is only possible in cell (7,6)









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









For column 7, Number 4 is only possible in cell (7,2)









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









For row 9, number 7 is only possible in cell (2,9)









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









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









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









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









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









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









Number 6 is the only value possible in cell (8,2).









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









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









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









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









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









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









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









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









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









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









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









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









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









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









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









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









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









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









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









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









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









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









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