Astraware Sudoku - It's a different kind of Zen

Step-By-Step Solution:

Initial Grid

                    
First step - add in all possible valid pencilmarks.




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









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









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









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









For row 4, number 7 is only possible in cell (5,4)









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









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









For row 1, number 7 is only possible in cell (3,1)









For row 6, number 7 is only possible in cell (2,6)









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









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









For column 7, Number 5 is only possible in cell (7,1)









For row 1, number 4 is only possible in cell (8,1)









For box 4, candidates for 8 are all in row 5, so you can remove candidates from other blocks.









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









For box 4, candidates for 2 are all in row 5, so you can remove candidates from other blocks.









For box 6, candidates for 1 are all in row 5, so you can remove candidates from other blocks.









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









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









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









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









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









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









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









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









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









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









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









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









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









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









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









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









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









Number 8 is the only value possible in cell (3,5).









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









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









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









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









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









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









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









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









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









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









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









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









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









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









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









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









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









Number 8 is the only value possible in cell (6,9).









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









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