Astraware Sudoku - It's a different kind of Zen

Step-By-Step Solution:

Initial Grid

                    
First step - add in all possible valid pencilmarks.




Number 4 is the only value possible in cell (6,2).









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









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









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









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









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









Number 1 is the only value possible in cell (4,7).









Number 2 is the only value possible in cell (4,9).









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









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









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









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









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









Number 9 is the only value possible in cell (7,2).









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









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









For row 5, number 1 is only possible in cell (1,5)









For row 3, number 5 is only possible in cell (8,3)









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









For row 8, number 5 is only possible in cell (3,8)









For row 7, number 3 is only possible in cell (9,7)









For row 5, number 3 is only possible in cell (8,5)









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









For row 4, number 9 is only possible in cell (5,4)









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









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









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









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









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









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









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









Number 4 is the only value possible in cell (1,7).









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









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









Number 6 is the only value possible in cell (1,9).









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









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









Number 7 is the only value possible in cell (2,1).









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









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









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









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









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









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









Number 4 is the only value possible in cell (9,6).









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









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









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









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









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









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









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









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