3 Mistakes To AVOID When Solving Sudoku

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In 3 Mistakes To AVOID When Solving Sudoku by Smart Hobbies, I will show you 3 Sudoku mistakes to avoid when solving Classic Sudoku Round 5 Puzzle 4 of 2024 Sudoku Grand Prix . I call these Sudoku mistakes the 3 “over” mistakes. I show you how to play Sudoku better and how to solve Sudoku faster. I solve this puzzle logically and explain all the expert Sudoku tricks, Sudoku techniques, and Sudoku strategies as I apply them to the Sudoku game.
I used the software program CTC App for this solving video. Puzzle link:
tinyurl.com/34dfbfcs
Czech Republic hosted Round 5 of 2024 Sudoku Grand Prix. Puzzle authors were Jan Novotny, Jan Vondruska, and Pavel Kadlecik.
This video is part of my Sudoku Competition series on my RU-vid channel, Smart Hobbies. The goal of this series is to share the joy of solving competitive Sudoku puzzles with you.
#learn #sudoku #youareawesome
Strategies demonstrated in this video:
Hidden Single
Naked Single
Full House
Pointing Pair
Naked Pair
Naked Triple
X-Wing
Timestamps
0:00 Intro
00:21 It’s Solving Time
00:49 Puzzle Story
01:07 Mistake #1 Overmarking
04:28 Mistake #2 Overcomplicating
08:50 Mistake #3 Overlooking Easy Solves
11:32 Neat Naked Triple Trick
12:44 BONUS Tip
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Subscribe to my channel here: / @smarthobbies
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Check out Smart Hobbies page on Harold Nolte’s Sudoku Primer website here:
sudokuprimer.com/smart-hobbie...
Contact me here:
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Discord: Timberlake#1905
Let me know what you think and how you did in the comments below. Thank you so much for watching.
Timberlake
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Опубликовано:

27 июл 2024

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Комментарии : 19

@SmartHobbies Месяц назад

📕Get my FREE Solving Guide that will help you solve over 80% of all Sudoku puzzles🧩to include NYT Hard👉👉www.buymeacoffee.com/timberlakeB/e/125822 Timestamps 0:00 Intro 00:21 It’s Solving Time 00:49 Puzzle Story 01:07 Mistake #1 Overmarking 04:28 Mistake #2 Overcomplicating 08:50 Mistake #3 Overlooking Easy Solves 11:32 Neat Naked Triple Trick 12:44 BONUS Tip

@BradJames878 26 дней назад

I solved it in 24:29 without watching the video first, so I'm getting better. I never found a triple, but I did find the X wing, and that helped a lot.

@SmartHobbies 26 дней назад

Awesome job Brad. Nice job finding that X-Wing.

@anaayoung9142 25 дней назад

My time was 4:04. Two things that I like about you channel: the hokodu rating and the fact that you solve easy/medium/hard puzzles and not only the insane one's 😅 Thank you!

@SmartHobbies 25 дней назад

Awesome job with your time. Thank you for the kind words. I am glad you like the rating system and variety of puzzle difficulties.

@georgesthibaudeau1533 25 дней назад

Very nice piece of geometrical construct. A lovely fast start: many 4s invite the player to look at the one in the central cell from where you see the easy 4 in the NW corner of block 8, but also the columns in which the pairs of 4s are located in both blocke 4 and 6, which immediately gives you a 4 in r2c1. Coming back to the centre, you note the 5s pointing from up left and down right into the central block: easy 5 in r4c5 and in r8c7. Now you have a matching pairs of 5s in columns 1 and 2 in both blocks 1 and 7, and hence, a 5 in r5c3. Acting upon this, the 2 in r5c1. Now you have the left side forming a wall 236: the 8 travelling upwards from the right in block 7 will be confined to the middle in block 4 and hence, must land below the acquired 4 , in r3c1. This disambiguates our pairs of 5s with a 5 in r3c2 and the other in r7c1, a 6 in r2c3and the last cell in col 1 at row 8 belongs to the 7.. You now have a 36 pair in th middle column of block 7, and you can place the 1 and the 2 to complete the eft side. If you start like this, you have a brand bew puzzle with infinite restrictions to facilitate moving towards the right... I agree: no need for any pencil marking, just look at the geometry and place digits. And don't be frustrated by the fact that the pairs of 4s located in blocks 4 and 6 in the first couple of seconds may not be disambiguated before the puzzle is almost complete... So much fun. Thanks fro challenging us with such beautiful pieces.

@sharmilisharmili472 25 дней назад

BTW, Ur timing, please.

@Ramakrishnagm 26 дней назад

Got 4&5 no's,then filled no's in all cells, X wings 3,3, 4, 5 solved whole puzzle. Sorry forgot time Now watching time. Yes, after saw your vedio I understood what mistakes I did. You finished with only one X wing, great vedio. Nice to learn. Thanks.

@SmartHobbies 26 дней назад

You are welcome. Thank you so much for sharing your feedback.

@JohnRandomness105 25 дней назад

Because it was billed as easy, I tried the puzzle notation-free. I think that I got at least two-thirds of the way through before giving up. I found an X-wing in 3s, and applying an X-wing notation-free, especially with my mind, is like juggling half a dozen objects. Fortunately, the X-wing gave me two immediate 3s (blocks 7 and 8), after which I put it aside and continued juggling the rest of the puzzle. The X-wing was resolved once I placed 2 in R1C7, and that gave me the rest of the 3s. I finally gave up notation-free and began centermarking. Once I hit R8C9, I noticed that a cell I thought of as 89 was just an 8. I made short work of the rest of the puzzle. 1:50 I notice that you didn't go the rest of the way with the 5s. The Snyder marks place a 5 in R5C3. I routinely, defiantly in fact, overmark. But not this time. Notation-free is the diametric opposite. My start was rather different. I filled column 1, placed all the 5s, and eventually spotted the X-wing. Your denigration of the X-wing: almost always, when I find an advanced position in an NYT Times puzzle, it turns out to be an embarrassment. I hope that I don't have to think of this X-wing as an embarrassment now. 9:00 Which block would I visit next? Based on what happened once I abandoned NF, I'd head for block 9.

@SmartHobbies 25 дней назад

Great commentary John. The X-Wing is not a mistake to find. Glad you were able to see it.

@fubaralakbar6800 26 дней назад

I use a sort of "reverse" Snyder notation, where I mark the eliminations caused by a Snyder pair, rather than the pair itself. For example, at the very beginning of the puzzle we have a locked pair of 4's in the right-hand column of block IV. So instead of marking Synder 4's there, I would write in a candidate 4 @r2c3, and then draw a slash mark through it, reminding me that although it looks like a 4 can go here, I've already concluded that it can't. 9:04 I first started looking at block IV due to the heavily restricted middle column, then I smacked myself for not noticing the naked single in row 7.

@SmartHobbies 26 дней назад

Interesting, I have not used "reverse" Snyder before. Do you find it helps more with easier or harder puzzles?

@fubaralakbar6800 25 дней назад

@@SmartHobbies It's great for both! Keeps the puzzle cleaner and more readable. They only time I mark Snyder pairs directly is when they overlap, like Snyder 3's and 7's meeting in a cell.

@SmartHobbies 25 дней назад

@@fubaralakbar6800 Nice!

@AnonimityAssured 26 дней назад

No big mistakes for me in this one. A natural unfolding was helped by a bit of short-term memory (45 = row 4 column 5): 45, 74, 21, 87, 53, 51, 31, 71, 81, 32, 23, 83, 93, 78, 72, 92, 17, 15, 76, 54, 67, 29, 56, 65, 95, 75, 89, 79, 18, 24, 26, 84, 85, 86, 35, 25, 38, 39, 27, 15, 98, 97, 48, 68, 43, 58, 42, 52, 47, 57, 62, 63, 12, 36, 34, 13. Afterthought: Here are some little variations that some people might enjoy. First, a warm-up: 100 904 006 020 000 050 003 000 400 900 401 002 000 050 000 300 806 005 008 000 700 040 000 080 600 105 009 100904006020000050003000400900401002000050000300806005008000700040000080600105009 HoDoKu rating: Easy 424. Andrew Stuart rating: Gentle/Easy Grade 67. ============= Then something a bit tougher: 100 804 006 020 000 050 003 000 400 900 408 002 000 050 000 300 706 005 008 000 700 040 000 080 600 105 009 100804006020000050003000400900408002000050000300706005008000700040000080600105009 HoDoKu rating: Hard 654 (one 'hard' step). Andrew Stuart rating: Tough Grade 128.

@SmartHobbies 25 дней назад

Cool, Julian. Way to go. Thanks for sharing additional variations.

@sharmilisharmili472 25 дней назад

Used pencil marks to finish.

@SmartHobbies 24 дня назад

Not a problem. Glad you could complete the puzzle.