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 8, number 6 is only possible in cell (1,8)









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









For column 4, Number 1 is only possible in cell (4,7)









For row 7, number 5 is only possible in cell (6,7)









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









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









For row 3, number 8 is only possible in cell (6,3)









Number 7 is the only value possible in cell (6,9).









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









For row 3, number 6 is only possible in cell (7,3)









For box 8, candidates for 9 are all in row 9, so you can remove candidates from other blocks.









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









Hidden Pair for 3 and 4, can remove other candidates from these cells.









Candidates for 2 in boxes 1 and 7 force the candidates in box 4 to be in the remaining line.









Naked Triple for 2, 5 and 7, can remove these as candidates from other cells.









For column 4, Number 7 is only possible in cell (4,1)









Either candidate for cell (5,1) forces 8 into cell (5,8).









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









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









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









For row 4, number 3 is only possible in cell (5,4)









Number 2 is the only value possible in cell (5,6).









For row 4, number 2 is only possible in cell (1,4)









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









For row 6, number 3 is only possible in cell (8,6)









For column 7, Number 5 is only possible in cell (7,6)









For box 8, candidates for 4 are all in row 9, so you can remove candidates from other blocks.









For box 6, candidates for 8 are all in column 9, so you can remove candidates from other blocks.









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









X-Wing in rows for 7.









Either candidate for cell (9,7) forces 7 into cell (2,4).









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









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









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









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









Number 9 is the only value possible in cell (5,2).









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









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









Number 5 is the only value possible in cell (9,2).









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









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









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









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









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









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









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









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









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









Number 7 is the only value possible in cell (9,6).









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









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









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









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









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









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









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









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









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









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