I am currently stuck at this point in the below Sudoku puzzle. What is my next move and why?
Thanks!
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Sign up to join this communityI am currently stuck at this point in the below Sudoku puzzle. What is my next move and why?
Thanks!
Firstly note in the bottom right with the cell currently only with 6 as a candidate, 1 is also a candidate, so the actual grid should look like this (there would be a lot more 1s, but for now lets just add this one):
Now in the second to bottom row,
we have a pair of cells with the only candidates being 1 and 6. This means that the numbers 1 and 6 MUST appear in one of these two cells, and using this, 1 and 6 can be removed from all the other candidates in this row. This method is known as a pointing pair. This leaves a naked 9 which can solve a row. The rest of the sudoku is simple after this, and I'll leave you to solve: