Astraware Sudoku - It's a different kind of Zen

Step-By-Step Solution:

Initial Grid

                    
First step - add in all possible valid pencilmarks.




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









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









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









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









Number 9 is the only value possible in cell (5,4).









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









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









Number 5 is the only value possible in cell (4,2).









Number 2 is the only value possible in cell (6,8).









Number 8 is the only value possible in cell (6,5).









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









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









For row 2, number 8 is only possible in cell (5,2)









For row 1, number 8 is only possible in cell (9,1)









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









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









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









For row 9, number 8 is only possible in cell (3,9)









For row 9, number 7 is only possible in cell (5,9)









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









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









For row 8, number 4 is only possible in cell (2,8)









For column 1, Number 4 is only possible in cell (1,2)









For blocks 7 and 8, candidates for 5 are all in the same two rows (7 and 8)









Naked Pair for 1 and 2, can remove these as candidates from other cells.









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









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









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









For row 1, number 7 is only possible in cell (2,1)









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









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









Number 6 is the only value possible in cell (3,5).









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









Number 1 is the only value possible in cell (7,5).









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









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









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









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









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









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









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









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









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









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









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









Number 1 is the only value possible in cell (5,7).









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









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









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









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









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









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









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