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 1, number 2 is only possible in cell (8,1)









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









For row 6, number 2 is only possible in cell (4,6)









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









For row 4, number 9 is only possible in cell (7,4)









For row 8, number 9 is only possible in cell (4,8)









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









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









For column 6, Number 4 is only possible in cell (6,9)









For row 2, number 6 is only possible in cell (3,2)









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









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









For row 7, number 6 is only possible in cell (1,7)









For box 5, candidates for 7 are all in column 6, so you can remove candidates from other blocks.









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









Number 3 is the only value possible in cell (6,1).









For box 9, candidates for 3 are all in column 7, so you can remove candidates from other blocks.









Naked Pair for 4 and 7, can remove these as candidates from other cells.









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









For row 2, number 1 is only possible in cell (9,2)









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









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









Number 7 is the only value possible in cell (1,9).









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









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









Number 7 is the only value possible in cell (9,1).









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









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









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









Number 9 is the only value possible in cell (6,2).









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









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









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









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









Number 9 is the only value possible in cell (8,3).









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









Number 3 is the only value possible in cell (1,6).









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









Number 4 is the only value possible in cell (9,6).









Number 7 is the only value possible in cell (8,5).









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









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









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









Number 7 is the only value possible in cell (2,3).









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









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









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









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









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









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









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









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









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









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









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









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