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 4 is only possible in cell (4,4)









For column 4, Number 1 is only possible in cell (4,6)









For row 2, number 7 is only possible in cell (9,2)









For row 3, number 7 is only possible in cell (5,3)









For row 6, number 7 is only possible in cell (1,6)









For row 2, number 6 is only possible in cell (7,2)









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









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









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









For column 1, Number 4 is only possible in cell (1,3)









For row 3, number 2 is only possible in cell (9,3)









For row 4, number 2 is only possible in cell (5,4)









For row 3, number 5 is only possible in cell (7,3)









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









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









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









For column 7, Number 8 is only possible in cell (7,5)









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









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









For row 4, number 1 is only possible in cell (9,4)









For row 5, number 4 is only possible in cell (9,5)









For row 9, number 4 is only possible in cell (6,9)









For box 1, candidates for 3 are all in column 2, so you can remove candidates from other blocks.









For blocks 5 and 6, candidates for 9 are all in the same two rows (4 and 6)









Either candidate for cell (1,4) forces 1 into cell (5,7).









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









Number 3 is the only value possible in cell (5,6).









Either candidate for cell (8,8) forces 1 into cell (3,9).









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









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









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









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









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









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









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









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









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









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









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









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









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









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









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









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









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









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









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









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









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









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









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









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









Number 3 is the only value possible in cell (1,8).









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









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









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









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