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 5, number 5 is only possible in cell (1,5)









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









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









For row 7, number 5 is only possible in cell (8,7)









For column 3, Number 1 is only possible in cell (3,9)









For row 1, number 2 is only possible in cell (3,1)









For row 3, number 6 is only possible in cell (8,3)









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









For row 7, number 4 is only possible in cell (2,7)









For box 3, candidates for 4 are all in row 1, so you can remove candidates from other blocks.









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









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









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









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









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









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









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









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









For column 7, Number 9 is only possible in cell (7,1)









For row 1, number 4 is only possible in cell (8,1)









For box 3, candidates for 3 are all in column 9, so you can remove candidates from other blocks.









For box 3, candidates for 7 are all in column 9, so you can remove candidates from other blocks.









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









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









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









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









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









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









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









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









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









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









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









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









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









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









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









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









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









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









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









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









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









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









Number 9 is the only value possible in cell (5,4).









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









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









Number 7 is the only value possible in cell (8,4).









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









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









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









Number 7 is the only value possible in cell (4,6).









Number 1 is the only value possible in cell (5,6).









Number 4 is the only value possible in cell (7,6).









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









Number 8 is the only value possible in cell (4,9).









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