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 (8,5).









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









Number 3 is the only value possible in cell (8,2).









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









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









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









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









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









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









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









Number 7 is the only value possible in cell (6,4).









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









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









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









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









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









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









For row 2, number 7 is only possible in cell (4,2)









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









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









For row 3, number 2 is only possible in cell (2,3)









Number 3 is the only value possible in cell (2,8).









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









For row 8, number 2 is only possible in cell (3,8)









For row 8, number 5 is only possible in cell (1,8)









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









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









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









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









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









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









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









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









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









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









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









Number 3 is the only value possible in cell (6,7).









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









Number 9 is the only value possible in cell (6,3).









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









Number 8 is the only value possible in cell (5,3).









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









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









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









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









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









Number 1 is the only value possible in cell (4,9).









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









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