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 5, number 4 is only possible in cell (8,5)









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









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









For row 8, number 6 is only possible in cell (8,8)









For column 7, Number 4 is only possible in cell (7,8)









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









For box 3, candidates for 8 are all in row 2, so you can remove candidates from other blocks.









For box 6, candidates for 7 are all in row 4, so you can remove candidates from other blocks.









Naked Pair for 7 and 9, can remove these as candidates from other cells.









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









For column 4, Number 9 is only possible in cell (4,3)









For box 2, candidates for 1 are all in column 5, so you can remove candidates from other blocks.









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









For row 4, number 1 is only possible in cell (3,4)









For blocks 2 and 5, candidates for 8 are all in the same two columns (5 and 6)









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









For row 2, number 8 is only possible in cell (9,2)









Naked Pair for 5 and 7, can remove these as candidates from other cells.









Candidates for 7 in boxes 2 and 8 force the candidates in box 5 to be in the remaining line.









Naked Pair for 3 and 7, can remove these as candidates from other cells.









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









Naked Pair for 5 and 7, can remove these as candidates from other cells.









Either candidate for cell (8,9) forces 8 into cell (6,3).









For row 4, number 8 is only possible in cell (5,4)









Either candidate for cell (9,1) forces 5 into cell (8,9).









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









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









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









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









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









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









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









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









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









Number 2 is the only value possible in cell (6,4).









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









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









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









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









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









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









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









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









Number 7 is the only value possible in cell (2,1).









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









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









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









Number 4 is the only value possible in cell (6,2).









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









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









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









Number 1 is the only value possible in cell (5,3).









Number 7 is the only value possible in cell (8,3).









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









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









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









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









Number 9 is the only value possible in cell (7,4).









Number 7 is the only value possible in cell (9,4).









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









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









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









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









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









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









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









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