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 (9,1).









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









For row 4, number 9 is only possible in cell (7,4)









For column 4, Number 9 is only possible in cell (4,2)









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









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









For row 2, number 5 is only possible in cell (6,2)









For row 2, number 8 is only possible in cell (5,2)









For column 6, Number 8 is only possible in cell (6,5)









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









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









For row 7, number 5 is only possible in cell (8,7)









For column 9, Number 5 is only possible in cell (9,6)









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









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









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









For column 4, Number 1 is only possible in cell (4,6)









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









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









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









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









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









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









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









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









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









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









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









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









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









Number 2 is the only value possible in cell (6,3).









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









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









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









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









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









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









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









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









Number 1 is the only value possible in cell (8,2).









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









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









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









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









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









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









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









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









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









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









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









Number 3 is the only value possible in cell (1,9).









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