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 (4,1).









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









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









Number 9 is the only value possible in cell (6,1).









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









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









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









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









For row 3, number 9 is only possible in cell (1,3)









For column 9, Number 3 is only possible in cell (9,6)









For row 1, number 4 is only possible in cell (9,1)









For row 1, number 2 is only possible in cell (8,1)









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









Number 1 is the only value possible in cell (9,7).









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









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









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









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









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









Number 3 is the only value possible in cell (4,9).









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









For row 5, number 3 is only possible in cell (6,5)









For box 6, candidates for 7 are all in row 4, so you can remove candidates from other blocks.









Naked Triple for 1, 6 and 7, can remove these as candidates from other cells.









Naked Pair for 2 and 9, can remove these as candidates from other cells.









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









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









Either candidate for cell (3,4) forces 6 into cell (1,9).









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









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









Number 6 is the only value possible in cell (5,7).









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









Number 2 is the only value possible in cell (5,4).









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









Number 7 is the only value possible in cell (5,6).









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









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









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









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









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









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









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









Number 5 is the only value possible in cell (1,4).









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









Number 6 is the only value possible in cell (3,5).









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









Number 6 is the only value possible in cell (7,3).









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









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









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









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









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









Number 9 is the only value possible in cell (3,6).









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









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









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









Number 8 is the only value possible in cell (2,7).









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