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 8 is only possible in cell (5,4)









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









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









For row 6, number 4 is only possible in cell (1,6)









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









For box 6, Number 2 is only possible in cell (8,5)









For row 4, number 5 is only possible in cell (9,4)









For row 7, number 5 is only possible in cell (2,7)









For column 7, Number 5 is only possible in cell (7,3)









For box 3, Number 4 is only possible in cell (9,1)









For box 7, candidates for 8 are all in column 1, so you can remove candidates from other blocks.









For box 4, candidates for 6 are all in row 5, so you can remove candidates from other blocks.









Naked Pair for 1 and 5, can remove these as candidates from other cells.









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









Naked Pair for 4 and 7, can remove these as candidates from other cells.









Naked Pair for 1 and 3, can remove these as candidates from other cells.









Hidden Pair for 8 and 9, can remove other candidates from these cells.









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









Hidden Pair for 2 and 4, can remove other candidates from these cells.









Hidden Pair for 6 and 7, can remove other candidates from these cells.









X-Wing in columns for 1.









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









For box 2, Number 9 is only possible in cell (6,3)









Number 1 is the only value possible in cell (8,3).









X-Wing in columns for 3.









Either candidate for cell (1,1) forces 6 into cell (1,5).









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









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









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









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









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









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









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









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









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









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









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









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









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









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









Number 8 is the only value possible in cell (3,1).









Number 3 is the only value possible in cell (8,1).









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









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









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









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









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









Number 2 is the only value possible in cell (1,4).









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









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









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









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









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









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









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









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









Number 2 is the only value possible in cell (7,8).









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









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









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









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









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









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









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









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









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