Astraware Sudoku - It's a different kind of Zen

Step-By-Step Solution:

Initial Grid

                    
First step - add in all possible valid pencilmarks.




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









For row 3, number 8 is only possible in cell (7,3)









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









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









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









For column 3, Number 1 is only possible in cell (3,3)









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









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









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









For column 7, Number 5 is only possible in cell (7,6)









For column 6, Number 5 is only possible in cell (6,5)









For row 5, number 8 is only possible in cell (2,5)









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









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









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









For row 3, number 9 is only possible in cell (6,3)









For column 8, Number 9 is only possible in cell (8,7)









For row 6, number 4 is only possible in cell (9,6)









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









For row 2, number 3 is only possible in cell (4,2)









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









For box 9, candidates for 1 are all in column 9, so you can remove candidates from other blocks.









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









For box 7, candidates for 3 are all in column 1, so you can remove candidates from other blocks.









For blocks 2 and 3, candidates for 6 are all in the same two rows (1 and 2)









Either candidate for cell (8,2) forces 6 into cell (2,3).









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









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









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









For box 1, candidates for 7 are all in column 1, so you can remove candidates from other blocks.









Either candidate for cell (3,4) forces 4 into cell (4,5).









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









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









Number 6 is the only value possible in cell (7,1).









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









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









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









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









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









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









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









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









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









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









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









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









Number 7 is the only value possible in cell (9,5).









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









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









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









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









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









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









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









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









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









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









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









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