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 (6,9).









Number 4 is the only value possible in cell (8,9).









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









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









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









For row 3, number 8 is only possible in cell (1,3)









For column 5, Number 8 is only possible in cell (5,4)









For row 5, number 7 is only possible in cell (2,5)









For row 8, number 7 is only possible in cell (5,8)









For row 3, number 7 is only possible in cell (4,3)









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









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









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









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









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









For row 4, number 9 is only possible in cell (3,4)









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









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









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









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









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









For row 7, number 3 is only possible in cell (9,7)









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









For row 4, number 3 is only possible in cell (1,4)









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









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









For box 6, candidates for 4 are all in column 9, so you can remove candidates from other blocks.









For box 1, candidates for 2 are all in column 3, so you can remove candidates from other blocks.









For box 4, candidates for 2 are all in row 6, so you can remove candidates from other blocks.









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









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









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









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









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









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









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









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









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









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









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









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









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









Number 1 is the only value possible in cell (7,3).









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









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









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









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









Number 4 is the only value possible in cell (5,3).









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









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









Number 2 is the only value possible in cell (6,5).









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









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









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









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