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 3 is only possible in cell (4,2)









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









For box 3, Number 8 is only possible in cell (8,1)









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









For column 1, Number 7 is only possible in cell (1,6)









For column 1, Number 6 is only possible in cell (1,2)









For column 1, Number 8 is only possible in cell (1,3)









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









For box 3, candidates for 1 are all in column 9, so you can remove candidates from other blocks.









For box 3, candidates for 2 are all in column 9, so you can remove candidates from other blocks.









For box 2, candidates for 9 are all in row 3, so you can remove candidates from other blocks.









For box 6, candidates for 9 are all in row 4, so you can remove candidates from other blocks.









For blocks 1 and 4, candidates for 9 are all in the same two columns (2 and 3)









Candidates for 1 in boxes 1 and 4 force the candidates in box 7 to be in the remaining line.









Hidden Pair for 6 and 7, can remove other candidates from these cells.









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









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









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









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









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









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









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









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









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









For row 5, number 3 is only possible in cell (2,5)









For box 4, candidates for 1 are all in column 3, so you can remove candidates from other blocks.









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









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









Either candidate for cell (8,5) forces 8 into cell (3,5).









Number 1 is the only value possible in cell (3,4).









Either candidate for cell (5,7) forces 7 into cell (9,7).









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









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









Number 8 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 (6,6).









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









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









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









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









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









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









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









Number 5 is the only value possible in cell (2,3).









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









Number 1 is the only value possible in cell (9,3).









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









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









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









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









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









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









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









Number 4 is the only value possible in cell (1,8).









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









Number 4 is the only value possible in cell (7,5).









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









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









Number 2 is the only value possible in cell (6,8).









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









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









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









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









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