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 9 is only possible in cell (6,5)









For row 2, number 6 is only possible in cell (9,2)









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









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









For row 7, number 4 is only possible in cell (3,7)









For box 6, candidates for 3 are all in row 6, so you can remove candidates from other blocks.









For box 6, candidates for 2 are all in column 9, so you can remove candidates from other blocks.









For box 9, candidates for 5 are all in row 7, so you can remove candidates from other blocks.









For box 7, candidates for 1 are all in column 1, so you can remove candidates from other blocks.









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









Naked Pair for 3 and 6, can remove these as candidates from other cells.









For box 5, Number 6 is only possible in cell (4,6)









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









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









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









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









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









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









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









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









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









Number 5 is the only value possible in cell (8,1).









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









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









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









Number 5 is the only value possible in cell (4,2).









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









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









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









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









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









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









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









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









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









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









Number 2 is the only value possible in cell (4,5).









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









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









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









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









Number 1 is the only value possible in cell (8,7).









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









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









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









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









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









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









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









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









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









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









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









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









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









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









Number 8 is the only value possible in cell (2,9).









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