Astraware Sudoku - It's a different kind of Zen

Step-By-Step Solution:

Initial Grid

                    
First step - add in all possible valid pencilmarks.




For column 3, Number 3 is only possible in cell (3,5)









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









For row 6, number 3 is only possible in cell (8,6)









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









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









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









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









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









For row 8, number 4 is only possible in cell (6,8)









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









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









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









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









For column 8, Number 4 is only possible in cell (8,7)









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









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









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









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









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









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









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









For row 5, number 7 is only possible in cell (1,5)









For row 5, number 9 is only possible in cell (2,5)









For row 1, number 7 is only possible in cell (3,1)









For row 3, number 7 is only possible in cell (8,3)









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









Hidden Pair for 3 and 5, can remove other candidates from these cells.









X-Wing in columns for 9.









X-Wing in columns for 1.









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









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









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









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









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









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









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









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









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









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









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









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









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









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









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









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









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









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









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









Number 8 is the only value possible in cell (7,5).









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









Number 3 is the only value possible in cell (1,8).









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









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









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









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









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









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









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