Astraware Sudoku - It's a different kind of Zen

Step-By-Step Solution:

Initial Grid

                    
First step - add in all possible valid pencilmarks.




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









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









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









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









Number 5 is the only value possible in cell (3,2).









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









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









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









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









For row 2, number 4 is only possible in cell (9,2)









For column 5, Number 4 is only possible in cell (5,7)









For row 2, number 8 is only possible in cell (6,2)









For row 4, number 8 is only possible in cell (2,4)









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









For row 5, number 8 is only possible in cell (8,5)









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









For box 3, candidates for 5 are all in column 7, so you can remove candidates from other blocks.









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









Candidates for 5 in boxes 5 and 8 force the candidates in box 2 to be in the remaining line.









X-Wing in rows for 2.









Either candidate for cell (8,1) forces 5 into cell (7,1).









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









Either candidate for cell (8,7) forces 1 into cell (7,2).









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









Number 7 is the only value possible in cell (5,1).









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









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









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









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









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









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









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









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









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









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









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









Number 3 is the only value possible in cell (7,5).









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









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









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









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









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









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









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









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









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









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









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









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









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









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









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









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









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