Help this is almost done but I can’t see how to finish
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Help this is almost done but I can’t see how to finish
by Richspence » Sat Mar 13, 2021 8:31 pm
Is there a way to continue without guessing?
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Re: Help this is almost done but I can’t see how to finish
by 999_Springs » Tue Mar 16, 2021 10:03 pm
either
turbot fish: 2 in rows 2 and 7 => r1c2,r8c1 =/= 2
or
unique rectangle: 58 r89c27 => r9c2 =/= 58
turbot fish: 2 in rows 2 and 7 => r1c2,r8c1 =/= 2
or
unique rectangle: 58 r89c27 => r9c2 =/= 58
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Re: Help this is almost done but I can’t see how to finish
by Xwtek » Sat Apr 24, 2021 4:08 am
Alternatively, you can solve this using a bug technique.
if the candidate 5 in r9c2 and candidate 2 in r1c1 is removed, it will turn into a bug situation. So, either candidate must be present. And candidate 5 at r9c2 implies candidate 2 at r1c2. So, you can remove any candidates with digit 2 at row 1 and the top-left home, except for these two solutions.
if the candidate 5 in r9c2 and candidate 2 in r1c1 is removed, it will turn into a bug situation. So, either candidate must be present. And candidate 5 at r9c2 implies candidate 2 at r1c2. So, you can remove any candidates with digit 2 at row 1 and the top-left home, except for these two solutions.
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