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 7, number 9 is only possible in cell (4,7)









For column 4, Number 8 is only possible in cell (4,9)









For row 8, number 5 is only possible in cell (2,8)









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









For row 7, number 5 is only possible in cell (9,7)









For row 9, number 5 is only possible in cell (6,9)









For column 3, Number 8 is only possible in cell (3,7)









For column 1, Number 8 is only possible in cell (1,3)









For row 7, number 6 is only possible in cell (1,7)









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









For column 7, Number 8 is only possible in cell (7,5)









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









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









For row 3, number 7 is only possible in cell (9,3)









For row 6, number 4 is only possible in cell (3,6)









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









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









For box 9, candidates for 1 are all in column 7, so you can remove candidates from other blocks.









For box 8, candidates for 2 are all in row 8, so you can remove candidates from other blocks.









Candidates for 6 in boxes 5 and 8 force the candidates in box 2 to be in the remaining line.









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 6, candidates for 2 are all in row 6, so you can remove candidates from other blocks.









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









X-Wing in rows for 2.









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









Number 9 is the only value possible in cell (8,5).









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









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









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









Number 2 is the only value possible in cell (3,5).









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









Number 9 is the only value possible in cell (3,4).









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









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









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









Number 8 is the only value possible in cell (6,2).









Number 3 is the only value possible in cell (5,2).









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









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









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









Number 2 is the only value possible in cell (9,6).









Number 1 is the only value possible in cell (9,2).









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









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









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









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









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









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









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









Number 3 is the only value possible in cell (2,1).









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









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









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









Number 6 is the only value possible in cell (4,8).









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









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









Number 2 is the only value possible in cell (1,9).









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









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









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