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 (4,1).









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









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









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









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









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









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









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









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









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









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









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









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









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









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









For column 1, Number 5 is only possible in cell (1,2)









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









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









Naked Triple for 1, 2 and 8, can remove these as candidates from other cells.









For blocks 3 and 6, candidates for 2 are all in the same two columns (7 and 8)









Hidden Pair for 2 and 8, can remove other candidates from these cells.









For box 3, candidates for 1 are all in row 2, so you can remove candidates from other blocks.









X-Wing in columns for 1.









Either candidate for cell (8,3) forces 2 into cell (2,8).









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









Number 4 is the only value possible in cell (3,2).









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









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









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









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









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









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









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









Number 2 is the only value possible in cell (6,7).









For column 8, Number 1 is only possible in cell (8,6)









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









Number 8 is the only value possible in cell (7,1).









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









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









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









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









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









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









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









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









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









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









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









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









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









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









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









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









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









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









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