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 (1,3).









Number 1 is the only value possible in cell (6,8).









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









For column 9, Number 5 is only possible in cell (9,5)









For column 9, Number 1 is only possible in cell (9,2)









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









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









For box 9, candidates for 3 are all in column 7, 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 5, candidates for 6 are all in column 5, so you can remove candidates from other blocks.









For blocks 7 and 8, candidates for 9 are all in the same two rows (8 and 9)









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









Naked Pair for 6 and 9, can remove these as candidates from other cells.









Hidden Pair for 1 and 7, can remove other candidates from these cells.









For column 8, Number 9 is only possible in cell (8,1)









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









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









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









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









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









For column 7, Number 9 is only possible in cell (7,5)









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









For row 5, number 2 is only possible in cell (1,5)









For row 9, number 4 is only possible in cell (2,9)









For row 1, number 6 is only possible in cell (4,1)









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









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









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









Number 8 is the only value possible in cell (7,1).









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









Number 4 is the only value possible in cell (5,2).









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









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









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









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









Number 3 is the only value possible in cell (6,4).









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









Number 5 is the only value possible in cell (2,4).









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









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









Number 2 is the only value possible in cell (5,4).









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









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









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









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









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









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









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









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









Number 1 is the only value possible in cell (8,6).









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









Number 9 is the only value possible in cell (5,8).









Number 3 is the only value possible in cell (1,8).









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









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









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









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









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