Astraware Sudoku - It's a different kind of Zen

Step-By-Step Solution:

Initial Grid

                    
First step - add in all possible valid pencilmarks.




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









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









Number 6 is the only value possible in cell (3,1).









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









For row 3, number 9 is only possible in cell (6,3)









For column 1, Number 8 is only possible in cell (1,3)









Number 7 is the only value possible in cell (4,3).









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









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









Number 6 is the only value possible in cell (5,2).









For box 5, Number 8 is only possible in cell (6,4)









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









For row 3, number 5 is only possible in cell (3,3)









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









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









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









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









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









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









For row 6, number 2 is only possible in cell (1,6)









For row 7, number 2 is only possible in cell (4,7)









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









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









For box 7, candidates for 5 are all in row 7, so you can remove candidates from other blocks.









Hidden Triple for 6, 8 and 9, can remove other candidates from these cells.









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









For box 7, candidates for 7 are all in column 1, so you can remove candidates from other blocks.









Either candidate for cell (2,5) forces 7 into cell (8,8).









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









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









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









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









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









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









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









For row 4, number 7 is only possible in cell (2,4)









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









Number 9 is the only value possible in cell (2,5).









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









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









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









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









Number 6 is the only value possible in cell (1,4).









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









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









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









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









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









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









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









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









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









Number 8 is the only value possible in cell (9,7).









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









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