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 7, Number 6 is only possible in cell (7,7)









For column 4, Number 1 is only possible in cell (4,7)









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









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









For column 5, Number 7 is only possible in cell (5,3)









For column 3, Number 3 is only possible in cell (3,1)









For row 2, number 3 is only possible in cell (4,2)









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









For column 8, Number 3 is only possible in cell (8,4)









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









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









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









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









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









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









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









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









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









Either candidate for cell (1,1) forces 8 into cell (2,6).









Number 7 is the only value possible in cell (1,6).









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









Either candidate for cell (1,1) forces 5 into cell (3,3).









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









For blocks 6 and 9, candidates for 1 are all in the same two columns (7 and 9)









Either candidate for cell (5,7) forces 2 into cell (1,7).









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









Number 5 is the only value possible in cell (8,1).









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









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









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









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









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









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









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









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









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









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









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









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









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









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









Number 9 is the only value possible in cell (7,4).









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









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









Number 3 is the only value possible in cell (2,7).









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









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









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









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









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









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









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









Number 1 is the only value possible in cell (7,9).









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