I have recently started trying "very hard" sudokus. I bypassed the following roadblock by guessing, but is there a pattern to recognize?
A 2 56 1 \
B 8 9 3457 \
C 467 46 3467 \ 34
A2 must be a 5.
tia q
Pattern?
2 posts
• Page 1 of 1
Pattern?
by mytamhuyet » Wed Feb 06, 2019 10:23 am
- mytamhuyet
- Posts: 1
- Joined: Wed Feb 06, 2019 9:31 am
Re: Pattern?
by creint » Wed Feb 06, 2019 5:24 pm
A naked quad C1234, has also locked candidates 6 and 7 in 1 box, so you can exclude 6 in A2 and 7 in B3.
You can exclude first 3467 in C56789 with the naked quad and afterwards you can exclude 6 in A2 and 7 in B3 with locked candidates.
You can exclude first 3467 in C56789 with the naked quad and afterwards you can exclude 6 in A2 and 7 in B3 with locked candidates.
- creint
- Posts: 400
- Joined: Sat Jan 20, 2018 2:28 pm
2 posts
• Page 1 of 1
Return to Help with puzzles and solving techniques
Who is online
Users browsing this forum: No registered users and 0 guests
