Astraware Sudoku - It's a different kind of Zen

Step-By-Step Solution:

Initial Grid

                    
First step - add in all possible valid pencilmarks.



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









Number 6 is the only value possible in cell (8,9).









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









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









For row 4, number 6 is only possible in cell (7,4)









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









Number 1 is the only value possible in cell (7,3).









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









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









For row 7, number 6 is only possible in cell (2,7)









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









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









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









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









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









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









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









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









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









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









For row 9, number 7 is only possible in cell (1,9)









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









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









For row 7, number 4 is only possible in cell (6,7)









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









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









Number 9 is the only value possible in cell (8,2).









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









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









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









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









Number 4 is the only value possible in cell (5,6).









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









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









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









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









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









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









Number 1 is the only value possible in cell (3,7).









Number 2 is the only value possible in cell (4,7).









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









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









Number 5 is the only value possible in cell (6,1).









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









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









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









Number 1 is the only value possible in cell (6,5).









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









Number 1 is the only value possible in cell (5,9).









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