Pattern Recognition for Beginners: Completed Segments and Using Phantom or Ghost Numbers
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- Опубликовано: 11 сен 2024
- Lesson #5 is on recognizing the completed segment pattern, its easy to recognize, and a powerful tool to help place numbers. This is considered a beginner strategy, but still a very powerful tool to use.
The next lesson, Lesson #6 is on Matching Pairs and how they can be used to eliminate and place numbers. Please subscribe to follow along with this series of Sudoku lessons, and thanks for watching!
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🥰I am 81 years old and just started Sudoku a couple of weeks ago. It was a lucky break when I found your youtube tutorial, and now I am hooked!! THANK YOU SO VERY MUCH FOR YOUR CLEAR INSTRUCTION!!!
Thanks so much for such a clear and engaging learning experience 🙏🏾
Thanks Florence, I appreciate it!
I love your lessons. I'm becoming addicted to Sudoku. I really like your presentation, and you are a great teacher.
Thank you so so much for the beautiful comment! Have fun!
Well said, I agree wholeheartedly! Appreciate cha!
looking forward to the hard level puzzles with you.
Coming soon.. thanks!
Me too. Working my way thru the lessons :)
I just want to thank you for these great lessons. I’ve been through the beginner lessons, and a couple of intermediates, and can now do medium level on the Sudoku Exchange :)
These are great. A wonderful way of learning to focus and pattern recognition
Thanks for teaching us a new technique.
Interesting. I knew these techniques just from practical experience but I never named them like ghosts, phantom numbers or completed segments. I find your channel on sudoku lessons to be very good.
This was a great lesson. I will have to practice this one.
thanks so much for this simple lessons. I just started Sudoku en it really helps
Beautifully explained very distinctively clear totally inspiring to learn & gives u confidence to try out your teachings a tips. Superb👌🏽🙏🏽thank you
Thank you so much! You are a great teacher!
You're very welcome! 🙏 thanks for the comment!
I was lucky to find your tutorial, I just started play sudoku and I am hooked😊. What are the best apps which a beginner could use?
Complicated but it is ok. I think I can learn anything when it is clearly explained like this is. Thanks. I am a big fan.
Thanks Micheline, I'll keep putting out lessons and hopefully it will help. But really its practice that helps the most. Enjoy the journey!
Please keep adding videos. I love learning this way. Your videos make sense to me.
@@michelinehershey3407 I will...they are very time consuming to make with all the circles and arrows, but I will continue to make them if people find them useful. Thanks for the support, I appreciate it!
I like your videos. I am learning a lot.
Very well explained, thank you.
Glad it was helpful, thanks for the comment!
Thanks Madam. It's very helpful to solve Sudoku
You are welcome, thanks for the comment!
This is illuminating for me ! Thank you .
Thanks a lot sir.
Why do you keep calling her sir? She's obviously a woman, you creep.
Nice technique. Obviously if there are 3 completed segment then the block is complete; 2 completed segements in the same block mean this technique cannot be used; therefore we're looking for a single completed segment within a block. What if there is one horzontal and one vertical within the same block? Can we use this technique for each seperately? Many thanks, your pace and description are very helpful.
I just re-viewed the video and you actually show a block with a horizontal and vertical completed segment - so I take it from that the technique can be used in this case.
Should this technique be applied before or after scanning?
usually after, sometimes during if you see it while scanning.
great stuff!!!!!!!!
Thank you Bweany, I really appreciate it!
Thank you for these lessons. I'm having a tough time wrapping my head around the completed segments. In the example you give, do the cells below the 5,9,8 need to be empty? Can you use this method when there are many filled in cells around the completed segments?
Hello Norm, yes you can use the technique if there are other completed segments, but the power is when you have empty cells and still you can deduce where the number goes because of the completed segment! Hope that helps. As you practice more you will understand it better, so keep practicing! Thanks for the question!
Confused here at 4:15. What about 5 & 7?
Got it. 5 & 7 weren't on the playing field.
So does that mean if we were trying to place a number in a block outside the block with the completed segment, and there were not already two numbers entered in that block's row (or column), then we would enter the number we are trying to place as ghost numbers? Also, should we now be entering "triplet" candidates , as you did with the number 5 in the final example? We are no longer entering ghost numbers only using Snyder notation?
As you progress to harder puzzles the Snyder notation is not always enough, and unless you can keep it in your memory, then you'll have to write in more numbers. I wrote those in for illustration purposes. Use Snyder notation at the beginning of the pencil marking process, and only pencil in more numbers when you find you need to. I will be covering matching pairs in the next lesson, and hidden pairs and triplets in a subsequent lesson, so hang on there. Ghost or phantom numbers are terms used to imagine if the numbers are placed there, then how would it affect the other cells it can see. I introduced the terminology in case you run across it elsewhere. It sounds like you are really making a lot of progress in your Sudoku journey!
Thank you, both for these wonderful lessons and for the words of encouragement.
I'm still confused by this lesson. When you say that a 4 must be in one of the ghost cells beneath the completed segment, how do you know it can't go in any of the three vacant cells in row F, beneath the 3 & 2?
Hello Norm, can you give me the time stamp of what you are asking so I can look back at the video to see what you are referring too?
@@LearnSomethingNewEveryDay Yes, it actually happens right at the 2:00 mark.
The 4 needs someplace to go in block 4 and someplace in block 5. In block 5 it can ONLY go in row F, so in block 4 it can't also go in row F, and it cant go in row E since there is a 4 there already, so it MUST go in row D column 2. The red lines show where the cells are eliminated, so the only place left is row D column 2. I hope that clarifies it?
@@LearnSomethingNewEveryDay YES! It's finally making sense for me. Thank you for clarifying it.
I’m looking at my airport sudoku book. I can’t even do the very easy puzzles. Your strategies are excellent. I’ve watched lessons 1-5. They are working for me. Thanx
It's complicated 😢