Astraware Sudoku - It's a different kind of Zen

Step-By-Step Solution:

Initial Grid

                    
First step - add in all possible valid pencilmarks.




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









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









For row 5, number 2 is only possible in cell (6,5)









For row 7, number 2 is only possible in cell (8,7)









For row 8, number 2 is only possible in cell (4,8)









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









For column 6, Number 4 is only possible in cell (6,7)









For row 9, number 6 is only possible in cell (1,9)









For box 5, Number 6 is only possible in cell (5,4)









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









For row 4, number 7 is only possible in cell (1,4)









For column 1, Number 5 is only possible in cell (1,8)









For column 2, Number 5 is only possible in cell (2,4)









For box 4, Number 8 is only possible in cell (2,5)









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









For box 5, candidates for 9 are all in row 6, so you can remove candidates from other blocks.









For box 6, candidates for 4 are all in column 8, so you can remove candidates from other blocks.









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









For blocks 5 and 8, candidates for 7 are all in the same two columns (5 and 6)









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









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









Hidden Pair for 1 and 5, can remove other candidates from these cells.









X-Wing in columns for 8.









Either candidate for cell (2,3) forces 8 into cell (6,9).









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









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









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









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









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









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









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









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









Either candidate for cell (3,1) forces 4 into cell (8,6).









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









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









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









Number 7 is the only value possible in cell (4,1).









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









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









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









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









Number 9 is the only value possible in cell (2,3).









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









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









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









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









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









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









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









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









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









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









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









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









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









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









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









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