Astraware Sudoku - It's a different kind of Zen

Step-By-Step Solution:

Initial Grid

                    
First step - add in all possible valid pencilmarks.




For row 4, number 1 is only possible in cell (7,4)









For row 7, number 1 is only possible in cell (4,7)









For row 2, number 9 is only possible in cell (8,2)









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









For column 6, Number 9 is only possible in cell (6,4)









For column 1, Number 7 is only possible in cell (1,5)









For row 5, number 9 is only possible in cell (3,5)









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









For column 4, Number 6 is only possible in cell (4,6)









For row 9, number 4 is only possible in cell (7,9)









For row 9, number 6 is only possible in cell (5,9)









For column 5, Number 3 is only possible in cell (5,8)









For column 7, Number 3 is only possible in cell (7,7)









For box 9, Number 2 is only possible in cell (7,8)









For box 3, Number 8 is only possible in cell (7,1)









For box 8, candidates for 7 are all in column 6, so you can remove candidates from other blocks.









For box 8, candidates for 2 are all in column 6, so you can remove candidates from other blocks.









For box 9, candidates for 6 are all in column 8, so you can remove candidates from other blocks.









For box 8, candidates for 8 are all in column 6, so you can remove candidates from other blocks.









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









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









Number 7 is the only value possible in cell (4,1).









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









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









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









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









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









Number 4 is the only value possible in cell (9,1).









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









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









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









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









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









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









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









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









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









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









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









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









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









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









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









Number 2 is the only value possible in cell (9,6).









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









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









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









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









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









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









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









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









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









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









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









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









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









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









Number 8 is the only value possible in cell (3,9).









Number 2 is the only value possible in cell (6,9).