Astraware Sudoku - It's a different kind of Zen

Step-By-Step Solution:

Initial Grid

                    
First step - add in all possible valid pencilmarks.




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









For row 8, number 9 is only possible in cell (2,8)









For row 3, number 9 is only possible in cell (5,3)









For row 1, number 9 is only possible in cell (1,1)









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









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









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









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









For row 6, number 4 is only possible in cell (5,6)









For row 6, number 7 is only possible in cell (9,6)









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









For row 7, number 4 is only possible in cell (6,7)









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









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









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









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









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









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









For column 4, Number 8 is only possible in cell (4,2)









X-Wing in rows for 3.









Naked Triple for 1, 2 and 6, can remove these as candidates from other cells.









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









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









For box 2, Number 1 is only possible in cell (4,3)









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









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









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









For row 9, number 1 is only possible in cell (1,9)









For row 2, number 1 is only possible in cell (3,2)









Either candidate for cell (6,1) forces 2 into cell (6,8).









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









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









Number 6 is the only value possible in cell (7,2).









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









Number 5 is the only value possible in cell (3,1).









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









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









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









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









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









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









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









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









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









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









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









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









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









Number 1 is the only value possible in cell (5,7).









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









Number 3 is the only value possible in cell (5,8).









Number 5 is the only value possible in cell (7,8).









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









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









Number 6 is the only value possible in cell (4,9).









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









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