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 3, number 1 is only possible in cell (6,3)









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









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









For row 4, number 2 is only possible in cell (7,4)









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









For column 2, Number 5 is only possible in cell (2,2)









For column 4, Number 5 is only possible in cell (4,7)









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









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









For row 9, number 7 is only possible in cell (1,9)









For column 4, Number 7 is only possible in cell (4,4)









Number 9 is the only value possible in cell (2,4).









For column 2, Number 7 is only possible in cell (2,5)









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









For box 9, candidates for 2 are all in row 7, so you can remove candidates from other blocks.









Candidates for 8 in boxes 5 and 8 force the candidates in box 2 to be in the remaining line.









Naked Pair for 2 and 9, can remove these as candidates from other cells.









Naked Pair for 2 and 9, can remove these as candidates from other cells.









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









Naked Pair for 3 and 9, can remove these as candidates from other cells.









Naked Pair for 2 and 9, can remove these as candidates from other cells.









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









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









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









For column 1, Number 3 is only possible in cell (1,7)









For column 4, Number 3 is only possible in cell (4,2)









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









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









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









Number 9 is the only value possible in cell (8,2).









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









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









Number 6 is the only value possible in cell (9,3).









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









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









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









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









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









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









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









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









Number 8 is the only value possible in cell (6,7).









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









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









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









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









Number 8 is the only value possible in cell (5,6).









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









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









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









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









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









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









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









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









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









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









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









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









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