Astraware Sudoku - It's a different kind of Zen

Step-By-Step Solution:

Initial Grid

                    
First step - add in all possible valid pencilmarks.




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









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









For column 4, Number 8 is only possible in cell (4,6)









For row 2, number 5 is only possible in cell (9,2)









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









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









For row 5, number 7 is only possible in cell (1,5)









For row 1, number 7 is only possible in cell (4,1)









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









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









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









Number 9 is the only value possible in cell (1,8).









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









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









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









For column 8, Number 6 is only possible in cell (8,7)









For column 1, Number 6 is only possible in cell (1,9)









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









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









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









For row 7, number 4 is only possible in cell (1,7)









For box 1, candidates for 4 are all in row 2, so you can remove candidates from other blocks.









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









Candidates for 1 in boxes 1 and 2 force the candidates in box 3 to be in the remaining line.









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









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









Number 1 is the only value possible in cell (6,2).









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









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









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









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









For row 3, number 1 is only possible in cell (2,3)









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









Number 1 is the only value possible in cell (3,9).









For row 5, number 1 is only possible in cell (9,5)









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









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









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









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









Number 2 is the only value possible in cell (1,3).









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









Number 2 is the only value possible in cell (8,5).









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









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









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









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









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









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









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









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









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









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









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









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