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 1, number 9 is only possible in cell (8,1)









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









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









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









For column 4, Number 8 is only possible in cell (4,3)









For box 4, Number 8 is only possible in cell (3,6)









For column 2, Number 5 is only possible in cell (2,3)









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









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









Hidden Pair for 5 and 9, can remove other candidates from these cells.









Either candidate for cell (7,5) forces 7 into cell (2,6).









For row 4, number 7 is only possible in cell (5,4)









For row 4, number 2 is only possible in cell (6,4)









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









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









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









Hidden Pair for 1 and 4, can remove other candidates from these cells.









For blocks 1 and 3, candidates for 2 are all in the same two rows (2 and 3)









X-Wing in rows for 6.









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









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









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









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









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









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









For column 8, Number 4 is only possible in cell (8,7)









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









Either candidate for cell (4,7) forces 6 into cell (3,8).









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









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









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









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









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









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









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









Number 6 is the only value possible in cell (1,3).









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









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









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









Number 3 is the only value possible in cell (8,4).









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









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









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









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









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









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









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









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









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









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









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









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









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









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









Number 5 is the only value possible in cell (7,9).









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