Astraware Sudoku - It's a different kind of Zen

Step-By-Step Solution:

Initial Grid

                    
First step - add in all possible valid pencilmarks.




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









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









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









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









For column 3, Number 1 is only possible in cell (3,4)









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









For box 2, Number 2 is only possible in cell (6,2)









For row 2, number 5 is only possible in cell (4,2)









For box 3, candidates for 6 are all in row 2, so you can remove candidates from other blocks.









For box 7, candidates for 6 are all in row 8, so you can remove candidates from other blocks.









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









For row 4, number 7 is only possible in cell (8,4)









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









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









For column 4, Number 7 is only possible in cell (4,6)









For column 3, Number 3 is only possible in cell (3,2)









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









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









For column 2, Number 3 is only possible in cell (2,6)









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









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









Number 8 is the only value possible in cell (3,7).









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









Number 3 is the only value possible in cell (4,8).









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









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









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









Number 5 is the only value possible in cell (1,4).









Number 3 is the only value possible in cell (6,4).









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









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









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









Number 2 is the only value possible in cell (1,6).









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









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









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









Number 9 is the only value possible in cell (5,6).









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









Number 4 is the only value possible in cell (1,8).









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









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









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









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









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









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









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









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









Number 1 is the only value possible in cell (7,2).









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









Number 8 is the only value possible in cell (5,9).









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









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









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