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 (3,4).









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









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









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









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









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









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









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









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









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









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









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









Number 3 is the only value possible in cell (7,6).









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









For row 1, number 1 is only possible in cell (4,1)









For column 2, Number 5 is only possible in cell (2,2)









For row 3, number 4 is only possible in cell (6,3)









For row 8, number 4 is only possible in cell (1,8)









For column 7, Number 5 is only possible in cell (7,8)









For box 9, candidates for 8 are all in row 9, so you can remove candidates from other blocks.









X-Wing in columns for 6.









X-Wing in rows for 2.









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









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









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









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









Naked Triple for 3, 8 and 9, can remove these as candidates from other cells.









Either candidate for cell (6,2) forces 9 into cell (2,1).









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









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









For row 9, number 7 is only possible in cell (1,9)









Either candidate for cell (5,1) forces 8 into cell (1,1).









Number 3 is the only value possible in cell (9,1).









Number 6 is the only value possible in cell (8,1).









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









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









Number 9 is the only value possible in cell (7,2).









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









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









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









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









Number 2 is the only value possible in cell (9,3).









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









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









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









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









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









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









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









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









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









Number 3 is the only value possible in cell (2,9).









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









Number 2 is the only value possible in cell (7,9).









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









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