Astraware Sudoku - It's a different kind of Zen

Step-By-Step Solution:

Initial Grid

                    
First step - add in all possible valid pencilmarks.




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









For row 1, number 8 is only possible in cell (7,1)









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









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









For row 7, number 8 is only possible in cell (9,7)









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









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









For column 6, Number 2 is only possible in cell (6,9)









For column 4, Number 5 is only possible in cell (4,1)









For box 8, candidates for 9 are all in row 9, so you can remove candidates from other blocks.









For box 8, candidates for 3 are all in column 5, so you can remove candidates from other blocks.









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









For box 2, candidates for 6 are all in row 1, so you can remove candidates from other blocks.









Candidates for 1 in boxes 5 and 6 force the candidates in box 4 to be in the remaining line.









Naked Pair for 4 and 5, can remove these as candidates from other cells.









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









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









For column 1, Number 4 is only possible in cell (1,2)









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









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









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









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









Number 5 is the only value possible in cell (9,2).









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









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









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









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









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









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









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









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









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









Number 5 is the only value possible in cell (7,6).









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









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









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









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









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









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









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









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









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









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









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









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









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









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









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









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









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









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









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









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









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









Number 5 is the only value possible in cell (2,9).









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









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









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









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