Astraware Sudoku - It's a different kind of Zen

Step-By-Step Solution:

Initial Grid

                    
First step - add in all possible valid pencilmarks.




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









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









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









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









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









For row 3, number 6 is only possible in cell (5,3)









For row 9, number 6 is only possible in cell (1,9)









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









For column 7, Number 5 is only possible in cell (7,6)









For box 7, Number 4 is only possible in cell (2,7)









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









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









For column 5, Number 4 is only possible in cell (5,9)









Hidden Pair for 1 and 5, can remove other candidates from these cells.









For box 2, candidates for 7 are all in column 6, so you can remove candidates from other blocks.









Naked Triple for 2, 3 and 8, can remove these as candidates from other cells.









X-Wing in rows for 5.









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









X-Wing in columns for 9.









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









For row 5, number 1 is only possible in cell (9,5)









Either candidate for cell (3,5) forces 7 into cell (2,6).









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









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









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









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









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









For row 5, number 4 is only possible in cell (6,5)









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









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









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









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









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









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









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









Number 9 is the only value possible in cell (7,3).









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









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









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









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









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









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









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









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









Number 2 is the only value possible in cell (4,1).









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









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









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









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









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









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









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









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









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









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









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









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