Astraware Sudoku - It's a different kind of Zen

Step-By-Step Solution:

Initial Grid

                    
First step - add in all possible valid pencilmarks.




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









For row 5, number 9 is only possible in cell (7,5)









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









For row 2, number 9 is only possible in cell (6,2)









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









For row 1, number 5 is only possible in cell (3,1)









For box 3, Number 1 is only possible in cell (8,3)









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









For row 5, number 3 is only possible in cell (2,5)









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









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









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









For row 8, number 3 is only possible in cell (5,8)









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









For column 9, Number 1 is only possible in cell (9,4)









Number 2 is the only value possible in cell (1,4).









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









For box 6, candidates for 4 are all in column 8, so you can remove candidates from other blocks.









For box 8, candidates for 4 are all in row 7, so you can remove candidates from other blocks.









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









For box 4, candidates for 5 are all in row 6, so you can remove candidates from other blocks.









Naked Pair for 1 and 8, can remove these as candidates from other cells.









For column 6, Number 1 is only possible in cell (6,8)









For row 8, number 5 is only possible in cell (4,8)









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









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









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









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









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









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









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









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









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









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









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









Number 8 is the only value possible in cell (2,6).









Number 1 is the only value possible in cell (4,6).









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









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









Number 6 is the only value possible in cell (8,1).









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









Number 7 is the only value possible in cell (6,1).









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









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









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









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









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









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









Number 4 is the only value possible in cell (6,7).









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









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









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









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









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









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









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









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









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