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 (7,2).









For column 6, Number 9 is only possible in cell (6,7)









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









For row 1, number 8 is only possible in cell (5,1)









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









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









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









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









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









For box 2, Number 6 is only possible in cell (4,2)









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









For row 3, number 2 is only possible in cell (5,3)









For row 5, number 2 is only possible in cell (1,5)









For box 4, candidates for 1 are all in row 5, so you can remove candidates from other blocks.









For box 2, candidates for 4 are all in row 3, so you can remove candidates from other blocks.









For box 7, candidates for 4 are all in row 9, so you can remove candidates from other blocks.









For box 2, candidates for 7 are all in row 3, so you can remove candidates from other blocks.









Naked Pair for 5 and 9, can remove these as candidates from other cells.









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









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









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









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









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









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









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









Number 6 is the only value possible in cell (1,4).









Number 7 is the only value possible in cell (8,5).









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









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









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









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









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









Number 1 is the only value possible in cell (3,7).









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









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









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









Number 2 is the only value possible in cell (8,1).









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









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









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









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









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









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









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









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









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









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









Number 6 is the only value possible in cell (2,1).









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









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









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









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









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









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









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









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









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









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