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 (9,9).









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









For row 3, number 1 is only possible in cell (6,3)









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









For row 2, number 3 is only possible in cell (8,2)









For row 2, number 8 is only possible in cell (6,2)









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









For row 6, number 8 is only possible in cell (2,6)









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









For row 7, number 8 is only possible in cell (1,7)









For column 2, Number 4 is only possible in cell (2,5)









For row 1, number 2 is only possible in cell (4,1)









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









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









For column 5, Number 2 is only possible in cell (5,4)









For box 7, Number 3 is only possible in cell (2,7)









For box 7, candidates for 5 are all in row 8, so you can remove candidates from other blocks.









For blocks 1 and 7, candidates for 5 are all in the same two columns (1 and 2)









Hidden Pair for 5 and 9, can remove other candidates from these cells.









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









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









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









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









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









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









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









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









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









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









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









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









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









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









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









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









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









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









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









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









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









Number 1 is the only value possible in cell (9,5).









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









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









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









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









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









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









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









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









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









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









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









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









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









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









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









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