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 (6,8).









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









Number 6 is the only value possible in cell (2,8).









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









For row 3, number 9 is only possible in cell (8,3)









For row 4, number 9 is only possible in cell (1,4)









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









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









For row 3, number 6 is only possible in cell (1,3)









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









For row 5, number 5 is only possible in cell (2,5)









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









For row 2, number 6 is only possible in cell (5,2)









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









For row 1, number 5 is only possible in cell (7,1)









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









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









For row 9, number 4 is only possible in cell (1,9)









For column 7, Number 2 is only possible in cell (7,5)









For box 3, candidates for 1 are all in column 8, so you can remove candidates from other blocks.









For row 4, number 1 is only possible in cell (9,4)









For box 8, candidates for 7 are all in row 9, so you can remove candidates from other blocks.









For blocks 5 and 8, candidates for 8 are all in the same two columns (4 and 5)









X-Wing in columns for 1.









Swordfish in rows for 7.









Either candidate for cell (4,2) forces 1 into cell (1,2).









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









For row 5, number 1 is only possible in cell (3,5)









Either candidate for cell (5,4) forces 8 into cell (6,1).









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









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









Number 4 is the only value possible in cell (5,1).









Number 7 is the only value possible in cell (8,2).









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









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









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









Number 7 is the only value possible in cell (5,4).









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









Number 7 is the only value possible in cell (9,5).









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









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









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









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









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









Number 8 is the only value possible in cell (4,6).









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









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









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









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









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









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









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









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









Number 8 is the only value possible in cell (5,9).









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