Astraware Sudoku - It's a different kind of Zen

Step-By-Step Solution:

Initial Grid

                    
First step - add in all possible valid pencilmarks.




For column 7, Number 6 is only possible in cell (7,4)









For column 7, Number 4 is only possible in cell (7,6)









For box 6, Number 5 is only possible in cell (9,5)









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









For box 5, candidates for 7 are all in column 6, so you can remove candidates from other blocks.









Naked Pair for 1 and 9, can remove these as candidates from other cells.









Naked Pair for 2 and 8, can remove these as candidates from other cells.









Hidden Pair for 6 and 9, can remove other candidates from these cells.









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









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









Hidden Pair for 3 and 5, can remove other candidates from these cells.









For column 1, Number 2 is only possible in cell (1,7)









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









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









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









For column 8, Number 2 is only possible in cell (8,1)









For column 1, Number 3 is only possible in cell (1,6)









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









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









For row 4, number 8 is only possible in cell (3,4)









For column 9, Number 8 is only possible in cell (9,8)









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









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









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









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









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









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









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









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









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









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









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









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









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









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









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









Number 9 is the only value possible in cell (5,1).









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









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









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









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









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









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









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









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









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









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









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









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









Number 8 is the only value possible in cell (4,1).









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









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









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









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









Number 6 is the only value possible in cell (3,9).









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









Number 1 is the only value possible in cell (5,9).









Number 3 is the only value possible in cell (6,9).









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