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 2, number 6 is only possible in cell (8,2)









For column 7, Number 2 is only possible in cell (7,6)









For row 6, number 4 is only possible in cell (9,6)









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









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









For row 5, number 9 is only possible in cell (8,5)









For box 5, candidates for 2 are all in row 4, so you can remove candidates from other blocks.









Candidates for 3 in boxes 2 and 3 force the candidates in box 1 to be in the remaining line.









Candidates for 5 in boxes 2 and 3 force the candidates in box 1 to be in the remaining line.









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









For row 2, number 8 is only possible in cell (4,2)









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









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









For blocks 4 and 6, candidates for 1 are all in the same two rows (4 and 5)









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









X-Wing in rows for 6.









X-Wing in rows for 1.









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









For box 4, Number 7 is only possible in cell (2,6)









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









Number 4 is the only value possible in cell (5,3).









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









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









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









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









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









For row 1, number 4 is only possible in cell (7,1)









For row 1, number 8 is only possible in cell (8,1)









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









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









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









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









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









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









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









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









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









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









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









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









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









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









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









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









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









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









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









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









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









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









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









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









Number 6 is the only value possible in cell (9,8).









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









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









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









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









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









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









Number 8 is the only value possible in cell (7,9).









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