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 1, number 8 is only possible in cell (4,1)









For row 5, number 8 is only possible in cell (3,5)









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









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









For box 2, Number 9 is only possible in cell (5,1)









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









For column 5, Number 1 is only possible in cell (5,2)









For column 2, Number 3 is only possible in cell (2,5)









For column 5, Number 3 is only possible in cell (5,8)









For box 2, candidates for 7 are all in column 6, so you can remove candidates from other blocks.









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









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









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









Number 5 is the only value possible in cell (1,7).









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









Naked Pair for 2 and 6, can remove these as candidates from other cells.









Naked Pair for 2 and 6, can remove these as candidates from other cells.









Either candidate for cell (8,2) forces 9 into cell (8,5).









Either candidate for cell (8,2) forces 5 into cell (9,2).









For row 1, number 5 is only possible in cell (3,1)









For row 2, number 3 is only possible in cell (6,2)









For row 2, number 6 is only possible in cell (4,2)









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









Naked Pair for 2 and 7, can remove these as candidates from other cells.









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









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









For row 6, number 6 is only possible in cell (2,6)









Naked Pair for 2 and 7, can remove these as candidates from other cells.









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









X-Wing in rows for 2.









X-Wing in rows for 1.









Hidden Pair for 1 and 2, can remove other candidates from these cells.









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









Either candidate for cell (7,1) forces 2 into cell (7,8).









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









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









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









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









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









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









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









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









Number 4 is the only value possible in cell (8,2).









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









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









Number 2 is the only value possible in cell (8,3).









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









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









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









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









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









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









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









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









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









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









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









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









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









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









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









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









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









Number 5 is the only value possible in cell (4,9).









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









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









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









Number 1 is the only value possible in cell (8,9).