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 3 is only possible in cell (9,8)









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









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









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









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









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









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









For column 2, Number 9 is only possible in cell (2,1)









For row 1, number 7 is only possible in cell (3,1)









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









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









For box 7, candidates for 5 are all in row 7, so you can remove candidates from other blocks.









Naked Pair for 1 and 5, can remove these as candidates from other cells.









For box 4, Number 1 is only possible in cell (3,5)









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









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









Number 6 is the only value possible in cell (5,8).









Number 1 is the only value possible in cell (2,8).









For row 7, number 5 is only possible in cell (3,7)









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









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









Number 7 is the only value possible in cell (5,2).









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









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









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









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









Number 5 is the only value possible in cell (8,1).









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









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









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









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









Number 8 is the only value possible in cell (6,5).









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









Number 3 is the only value possible in cell (4,7).









For row 6, number 8 is only possible in cell (9,6)









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









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









Number 2 is the only value possible in cell (7,9).









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









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









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









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









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









Number 6 is the only value possible in cell (8,7).









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









Number 2 is the only value possible in cell (8,4).









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









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









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









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









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









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









Number 2 is the only value possible in cell (3,6).









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









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









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









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









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