@@Nation-Fashion Yeah, I encountered a ton of puzzles similar to the first one in Serbia as well. Second one reminded me of Sudoku a lot, never encountered it before, but it was fun. I actually had to think for a minute or two before coming up with the solution. I don't think that makes me a genius though.
I was absolutely stumped by the first question. I saw that there were 2 possible codes. Then I unpaused and realized I had not gotten the final clue yet.
@ashurajput6916 4367 isn't a correct answer I think because the only one where it said 4 was in the correct position was the last one, so the code is 6347. I haven't got past the code showcase part in the vid but I'll update if I see something different.
I did the same. I worked it all out just looking at on the screen, controlling the numbers and what is and isn't possible .. and got that answer. The I started the video to see if I went to the long way (any short cuts I missed). And presto whole new problem lol.
My bad, the preview was swapped with another puzzle. Answer is 3841. The puzzle is from this video: ua-cam.com/video/ToIENnaMpLo/v-deo.htmlfeature=shared&t=112
@@MindYourDecisions lol no worries Presh. Just means more content and puzzles for us to solve hehe. Second puzzle in the video seems harder than the first one.
I haven’t been doing anything after high school for 2 years, and, quite frankly, I’ve been struggling. You’re videos seem to be helping me get back into the swing of things. Thank you for making AND THEN POSTING this educational content, Presh.
I'm so bad with these kind of puzzles but I decided to try and after writing up the list of suspects I was easy to just discard the ones that aren't part of the password and it also helps you to remind that the 7 exists even if is not written in the clues. I'm currently training to improve in strategy games and you videos are helping me a lot, thank you very much.
I always use a matrix to solve puzzles like Puzzle 1, as a matrix allows you to eliminate possibilities once positions are known - i.e., every time you put a tick in a matrix, you can put crosses in every other location in the same row and the same column. In this case the matrix is a very simple single-block matrix: possible numbers vertical in Rows, and possible positions across in Columns. So Clue 3 enable you to put crosses in all columns in the rows for numbers 5, 8 ,9 & 0. Similarly, Clue 1 enables you to put a cross at Row 1, Col 1, also a cross at R2C2, and at R3C3, and at R4C4. This is because the numbers may be right but they don't go in those columns. Taking Clue 2, you already have crosses in all columns for Row 5, so the other 3 numbers must be correct, but as none of them is in the right place you can put crosses in R3C1, R4C2, and R6C4. Taking Clue 4, you know that the two numbers that are correct must be 3 & 4, from Clue 3, so numbers 2 & 0 [the latter already known] must be wrong, so put for crosses in for Row 2. Similarly, Clue 5 , following Clue 3, tells you that the correct numbers are 4 & 6, so 1 must also be wrong, so put 4 crosses in Row 1. But this clue ALSO tells you that 4 & 6 are in the correct positions. So put a TICK in R4C3 & in R6C1. BUT as this is a matrix, if you have a tick somewhere, there can't be a tick anywhere else in that column or that row - so you can eliminate the rest of Row 4 & Col 3, and Row 6 & Column 1 by putting crosses in. This is extra information. If you look at your matrix, you now see that there are only 4 locations left unmarked - R3C2, R3C4, R7C3 & R7C4. But since you now know where the number 4 goes, you can now see that it isn't in the correct place in Clue 4, so it must be the other know number [3] that is correctly placed - so you now put a tick in R3C2. This also means a cross in the rest of Row 4 and Column 2 - leaving only one location unmarked, which is R7C4, so we tick that. The code is now known
In the first puzzle, after using the 3rd and 4th clues (5, 8, 9, 0) and (3, 4, 5, 6) to figure out 3 of the numbers and eliminate 4, the first clue (1, 2, 3, 4) gets you to the 4 correct numbers, instead of needing to use clues 4 and 5.
For puzzle 2, I kind of missed the parts about "...but incorrect squares". Turns out it is still possible to solve it. It definitely added a bit of an extra challenge though.
The first puzzle I found pretty simply and got it easily. The second one made me sigh and buckle down...But in the end I just started filling out what I felt was a POSSIBLE answer based on what I knew and it turned out to be correct. I was surprised I got it, and probably didn't use optimal logic because I didn't place the first number down due to narrowing it down to only one possibility, but rather just placed one that worked based on the three clues and then started filling in or moving around based on the clues and the filled in numbers.
I solved the first puzzle in 10 minutes but the second puzzle took me 45 minutes. At least at 67 years old I am alive and can still solve these puzzles
these puzzles, especially second one, are very reminiscent of sudoku. playing a lot of variants of it, and it hit the same vibe (though maybe was a bit easier than most sudoku I sit at nowadays)
The first one was easy enough, but the second one stumped me until you pointed out the contradiction of the two 3s in the latter two squares. After that, it was straightforward, but I still only scored 50%.
We have been playing this game with our classmates during class since we were 12 years old, and really helps developing logical thinking. Each of us will write down a 4 digit number secretly (no digits are the same,) and see who can reveal the others number first. After every round of guessing, we would check our answer and see how did our opponent did. For every correct digit that was at the correct position, we would respond with an "A;" and for every right digit located at the wrong position, we would respond with a "B." Using your puzzle as an example, we would respond with "3B" after our opponent guessing "3456," "0A0B" after the second round, and "1A1B" for the third round, and "2A" on the last round. We only allow 8 rounds to guess 4 digit puzzles. Hope kids can play more of these logical games rather than FPS games...
I guess my brain is hardwired for this particular type of puzzle. Solved both in less than 10 minutes just by doing everything in my mind. Extremely fun stuff.
Imma try puzzle one. Hint 3 eliminates 5,8,9,0. Hint 2 means 3,4,6 are in the code. Hint 5 means 6 is in pos 1, 4 is in pos 3 and eliminates 1 & 2 Hint 4 means 3 is in pos 2. So far we have 634X as the code. Last number is 7 since it is the only number that isn't eliminated and wasn't already in the code. (each digit can only be used once.) So the code is 6347. You don't even need hint 1 to solve the puzzle.
Puzzle 1 Solution: By using the first two clues, I can immediately deduce that 3 and 4 are two of the correct numbers. This eliminates 1 and 2 immediately. I can also deduce that 3 either goes in the first or third position, while 4 either goes in the second or fourth position. Adding the third clue, I can deduce that 6 is the third correct number, therefore eliminating 5, and I can also eliminate 8, 9, and 0, since neither is correct. By process of elimination, 7 is the remaining correct number. Now there's just the matter of putting all four numbers in the correct positions. As shown in the second clue, 6 must go into one of the first three positions. Using the fourth clue, I know that 3 goes into the second position, and using the last clue, 6 goes into the first position and 4 goes into the third position. This means 7 goes into the fourth position, so the code is 6347. Puzzle 2 Solution: Using the third grid, I can immediately deduce that 3 doesn't belong in the third column, 1, 4, and 7 all belong in the second row, and 6 and 9 belong in the third row. Using the first two grids, I know that 3 has to be in the first row and second column (the top edge), 4 belongs in the second row and second column (the center), 1 belongs in the second row and first column (the left edge), 7 is in the second row and third column (the right edge), 5 is in the third row and second column (the bottom edge), 2 is in the first row and first column (the top left corner), 6 is in the third row and third column (the bottom right corner), 9 is in the third row and first column (the bottom left corner), and by process of elimination, 8 (the remaining number) is in the first row and third column (the top right corner).
2:28, you went to the slower next clue. Sure it worked, but if you had gone to clue 1 instead you get to the answer faster; you've confirmed 3 and 4 are there, 1234 has two correct, so you eliminate 1 and 2 with a single clue rather than 2 clues.
Left vague to not spoil the answer: Clues 3 then 2 then 1 will tell you in shorter order what the 4 numbers are. Then combine with clues 5 and 4 to get the order. (Just annoying you never used clue 1 in the video) I solved both, but I don’t have a great spoiler-free explanation/hint for the second one short of start by figuring out what DOESN’T go in certain rows/columns.
For the first puzzle, we don't actually need to know that out of 3456 three numbers are correct but in the wrong positions. Here's how I solved the puzzle without using this information: Step 1: Out of 5890 nothing is correct, so numbers 5, 8, 9 and 0 are not correct Step 2: Out of 6241 two numbers are correct and in the right positions; out of 1234 two numbers are correct but in the wrong positions. If number 2 is correct, then the puzzle is saying 2 is in the right position when it's in the second place and it's in the wrong position when it's in the second place, which contradicts itself, so in reality, 2 is not a correct number. Step 3: Out of 2304 two numbers are correct. We know that 0 and 2 are not correct numbers, so 3 and 4 are correct. Step 4: Out of 1234 two numbers are correct. We know that 3 and 4 are correct numbers, so 1 is not correct. Step 5: Now, out of 0123456789, we eliminated all the numbers except 3, 4, 6 and 7, so they are the only four correct numbers. Step 6: Figure out the order of these correct numbers (as shown in the video), then we can get 6347😎
The first code is like a game from the 1970s called "Mastermind", played with coloured pegs instead of numbers. Same logic applies. One player set up a concealed code, then the other made successive guesses, which were marked with black and white pins for correct in the correct place and correct in the wrong place. Scoring was in how many turns were needed. I think an advanced version had more than 4 spaces, but I don't remember how many colours were available.
My bad, the preview was swapped with another puzzle. Answer is 3841. The puzzle is from this video: ua-cam.com/video/ToIENnaMpLo/v-deo.htmlfeature=shared&t=112
First one is very easy solved within 5 minutes. Second one little bit hard didn't understand first then tried again and solved in 10 minutes. Both answers were correct.
oh god 1:34 - use the clue which reveals the most information 2:26 - yeah I know that 3 and 4 are correct, but lets use clue 4 and5 to make it two steps instead of using clue 1 and notice that 1 and 2 are incorrect digits :D
@@redfinance3403 i drew a 3x3 grid and entered every possible number in each cell and then systematically removed numbers, just like sudoku. Really fun!
@8:01 - nothing about this clue requires 3 to be the number in the correct row. Although the grid contains three digits, the text describes two digits with one property, and then one digit with a different, unrelated property, so the pigeon hole principal cannot be assumed to apply.
Note that you can get there by determining that 3, 4, and 5 must all be in the second column, and neither 4 nor 5 can be in the first row. But until you do, your solution from @8:01 onwards is unfounded.
I think the first puzzle is solvable even with duplicate numbers allowed and comes out the same but probably makes it a bit harder but (again) from the first positions you took probably would have made it solved in the same number of steps.
Solved both correctly, the first one in a few minutes, the second one took longer, about 10-12 minutes. But I never considered myself a genius 😂 I don’t think these puzzles might be a “genius test” ))) Though these puzzles are fun 😊
I did puzzle 1 a bit differently I started with nothing correct to eliminate 5 8 9 0 Then I looked at the second clue, eliminating 5 to get 3 4 and 6 in the pin Then I looked at the first clue. As the first has two correct, the second has three correct, and 3 4 are in both, I can eliminate 1 and 2 Clue 5 gives us the position of 6 and 4 Clue 4 gives us the position of 3 as we know the position of 4 And the last is process of elimination. 6 3 4 7
I must be a genius then because I solved them both. 2nd puzzle was harder as I've not seen 1 of them before so I had to work out how to work it out. I did it completely differently but still got the same answer.
Hi Presh. I had to clarify this. A ‘PIN' is a “Personal Identification Number” which does not apply for a combination lock. People also talk about a "PIN number” (personal identification number, number 😀). Those of us that were around when PINs were first used, know what it stands for but I reckon most younger people do not. The number for the lock, is a “combination number”. Keep up the good work, I enjoy your videos.
Actually, the identification part just refers to the idea that the bearer is identified as a person who should have access. So, arguably, it could still be a PIN. It just happens that in this case access is granted to anyone identified as being able to solve basic logic puzzles 😂
ngl it took me a while to figure out both of them, but at the end the results matter. Tbh I think that all it takes is time and a piece of paper. The second one I think a bit harder, because you need to keep track of more numbers, but over time I stopped being scared to make assumptions what ultimately lead to success. P. S. I worked though 1 and 2 grid first, because there was less numbers to keep track of. (all it took is to make assumptions whether 3 correct or 4 is, and then it's pretty just picking a number, and checking it though all 3 grids. )
it took me longer then i though. I had most of the numbers column sorted out and then it took me along time to realize that if i knew the numbers colmn, it means if i find the correct row, then that is just where its goes and i can solve the actual puzzle.
1st hint, nothing known yet. 2nd hint, 3 and 4 have been repeated, so those two must be correct; another is unknown. 3rd hint, 5 is not correct, so in 2nd hint we can say 6 is the correct number. Therefore: 3,4,6 are the 3 correct digits 4th hint, 3 and 4 are correct, one of the two is in correct position. It cant be 4 since it is in wrong position in 1st hint, so here also wrong; Thus 3 must be the one in correct position. 5th hint, 6 and 4 are correct, are also said to be in correct position, thus 634 is one portion. 0,1,2,5,8,9 were unavailable, so 7 must be the last number -> 6347
It would have been better to look at 1234 as the third clue for the first puzzle as it would have revealed that 1 and 2 were not in the pin, leaving only 7 as the fourth digit in the pin.
My bad, the preview was swapped with another puzzle. Answer is 3841. The puzzle is from this video: ua-cam.com/video/ToIENnaMpLo/v-deo.htmlfeature=shared&t=112
The first one is incredibly easy. Around 20 seconds to solve it...and i'm way far to the genius status 😵💫. The second is easy too but a little bit longer due to the counting time.
puzzle 1 was easy but puzzle 2 took me like 30 minutes. i got stuck on the clue "1 number is in the correct row but incorrect square" because i completely ignored the "but in the incorrect square" part... i got it right tho
Really easy puzzles. In th first puzzle I stopped the video after clue 4 (missing clue 5). I easily identified the correct digits, but got two solutions for the positions, namely 4367 and 6347 😂. With the last clue it became much easier 🤣.
Guess I'm a genius then and surrounded by a lot of geniuses somehow.
Puzzle 1 was common popular school game cows and bulls we play in india
@@Nation-Fashion Yeah, I encountered a ton of puzzles similar to the first one in Serbia as well. Second one reminded me of Sudoku a lot, never encountered it before, but it was fun. I actually had to think for a minute or two before coming up with the solution. I don't think that makes me a genius though.
Lol, was literally going to say the same thing.
You're a curious person, surrounded by a lot of curious people. We all took the time to solve this and that makes us good people.
@@djphantom8800 I think that just makes us rational. Solving a puzzle doesn't make you a good person.
Solved both puzzles in 1 seating, about 20 minutes, without writing anything out; the mental checking process is quite a brain workout!
Same!
the second one sure is a mental workout. I used a sudoku grid with candidates and took a couple of minutes tho.
I was absolutely stumped by the first question. I saw that there were 2 possible codes. Then I unpaused and realized I had not gotten the final clue yet.
Puzzle 1 was common popular school game cows and bulls we play in india
i did the excat same mistake, 4367 and 6347 were the two answers lol
I did legit the exact same thing
@ashurajput6916 4367 isn't a correct answer I think because the only one where it said 4 was in the correct position was the last one, so the code is 6347. I haven't got past the code showcase part in the vid but I'll update if I see something different.
@@ashurajput6916Nevermind I just got the context but 4367 would have been a possible solution without the last clue.
Thumbnail is 3841. Why did I do the thumbnail one lmao 😂
I did the same. I worked it all out just looking at on the screen, controlling the numbers and what is and isn't possible .. and got that answer. The I started the video to see if I went to the long way (any short cuts I missed). And presto whole new problem lol.
Me too, and found the same solution! ;D
My bad, the preview was swapped with another puzzle. Answer is 3841. The puzzle is from this video: ua-cam.com/video/ToIENnaMpLo/v-deo.htmlfeature=shared&t=112
@@MindYourDecisions lol no worries Presh. Just means more content and puzzles for us to solve hehe. Second puzzle in the video seems harder than the first one.
That one was from a while ago.
I haven’t been doing anything after high school for 2 years, and, quite frankly, I’ve been struggling. You’re videos seem to be helping me get back into the swing of things. Thank you for making AND THEN POSTING this educational content, Presh.
The second puzzle gave me sudoku vibes and took a while to solve on my own
@4:35 - One of the few times I've been both correct and quick on one of your puzzles.
these puzzles are rly simple , i solved them rly quickly ,theres no way that every person who can solve this is a genius
I'm a genius, apparently, but I'm a slow genius. That second one took awhile.
Watch the one percent club, someone thinks a polar bear lives in the desert.
@@luckydannumber2they do. 😅 the arctic is considered a polar desert same as Antarctica
@@luckydannumber2 when polar bears do live in the desert.
Uh sorry to say but polar bears don’t live in Antarctica, none exist in the wild in the southern hemisphere… 💀
don't know if is faster, but I did 9 matrices - 1 for each number - and start eliminating one by one in each square.
yay. I must be a genius? or just someone who plays sudoku a lot...
Yeah, both of them could be true at once though
I'm so bad with these kind of puzzles but I decided to try and after writing up the list of suspects I was easy to just discard the ones that aren't part of the password and it also helps you to remind that the 7 exists even if is not written in the clues.
I'm currently training to improve in strategy games and you videos are helping me a lot, thank you very much.
For the first puzzle, I think 1234 is a better clue to eliminate 1 and 2 in one go, with only 7 left over.
Yes, but the puzzle can be entirely solved without the first clue, making it superfluous.
Puzzle 1 was common popular school game cows and bulls we play in india
I didn't solve these questions in minutes, like everybody here. But I did solve it and am happy for that. Thanks, Presh, for these puzzles.
Please do more of these logic puzzles !!!
2 minutes to the first one and 53 minutes for the second but I'm into my 70's so happy with that.
Sneaky.... I solved the mastermind puzzle on paper, then checked it with my trusty little C code I wrote to make/check these.... thanks!
Nobody cares
@@Hernsama Thanks for your 'input'.
@@geoninja8971 good one :)
@@Hernsama You cared enough to comment. That's all that required: interaction.
@@Hernsama Would you like some fries with that salt?
2nd puzzle is made much simpler if you use WFC (Wave Function Collapse) algorithm. These were fun. Thanks for the upload!
I love it that each time you present a very trivial puzzle, you make us all feel like geniuses!
Managed both in my head - proud! 🎉
Same here. Go us!! 🎉😊😂
I always use a matrix to solve puzzles like Puzzle 1, as a matrix allows you to eliminate possibilities once positions are known - i.e., every time you put a tick in a matrix, you can put crosses in every other location in the same row and the same column.
In this case the matrix is a very simple single-block matrix: possible numbers vertical in Rows, and possible positions across in Columns.
So Clue 3 enable you to put crosses in all columns in the rows for numbers 5, 8 ,9 & 0.
Similarly, Clue 1 enables you to put a cross at Row 1, Col 1, also a cross at R2C2, and at R3C3, and at R4C4. This is because the numbers may be right but they don't go in those columns.
Taking Clue 2, you already have crosses in all columns for Row 5, so the other 3 numbers must be correct, but as none of them is in the right place you can put crosses in R3C1, R4C2, and R6C4.
Taking Clue 4, you know that the two numbers that are correct must be 3 & 4, from Clue 3, so numbers 2 & 0 [the latter already known] must be wrong, so put for crosses in for Row 2.
Similarly, Clue 5 , following Clue 3, tells you that the correct numbers are 4 & 6, so 1 must also be wrong, so put 4 crosses in Row 1. But this clue ALSO tells you that 4 & 6 are in the correct positions. So put a TICK in R4C3 & in R6C1. BUT as this is a matrix, if you have a tick somewhere, there can't be a tick anywhere else in that column or that row - so you can eliminate the rest of Row 4 & Col 3, and Row 6 & Column 1 by putting crosses in. This is extra information.
If you look at your matrix, you now see that there are only 4 locations left unmarked - R3C2, R3C4, R7C3 & R7C4.
But since you now know where the number 4 goes, you can now see that it isn't in the correct place in Clue 4, so it must be the other know number [3] that is correctly placed - so you now put a tick in R3C2. This also means a cross in the rest of Row 4 and Column 2 - leaving only one location unmarked, which is R7C4, so we tick that.
The code is now known
In the first puzzle, after using the 3rd and 4th clues (5, 8, 9, 0) and (3, 4, 5, 6) to figure out 3 of the numbers and eliminate 4, the first clue (1, 2, 3, 4) gets you to the 4 correct numbers, instead of needing to use clues 4 and 5.
For puzzle 2, I kind of missed the parts about "...but incorrect squares". Turns out it is still possible to solve it. It definitely added a bit of an extra challenge though.
What I liked most is the notation mechanism ( 6:06 ). The puzzles are great.
The first puzzle I found pretty simply and got it easily. The second one made me sigh and buckle down...But in the end I just started filling out what I felt was a POSSIBLE answer based on what I knew and it turned out to be correct. I was surprised I got it, and probably didn't use optimal logic because I didn't place the first number down due to narrowing it down to only one possibility, but rather just placed one that worked based on the three clues and then started filling in or moving around based on the clues and the filled in numbers.
I solved the first puzzle in 10 minutes but the second puzzle took me 45 minutes. At least at 67 years old I am alive and can still solve these puzzles
these puzzles, especially second one, are very reminiscent of sudoku. playing a lot of variants of it, and it hit the same vibe (though maybe was a bit easier than most sudoku I sit at nowadays)
Second one was a bit harder to do in my head but we got there
The first one was easy enough, but the second one stumped me until you pointed out the contradiction of the two 3s in the latter two squares. After that, it was straightforward, but I still only scored 50%.
We have been playing this game with our classmates during class since we were 12 years old, and really helps developing logical thinking.
Each of us will write down a 4 digit number secretly (no digits are the same,) and see who can reveal the others number first.
After every round of guessing, we would check our answer and see how did our opponent did. For every correct digit that was at the correct position, we would respond with an "A;" and for every right digit located at the wrong position, we would respond with a "B." Using your puzzle as an example, we would respond with "3B" after our opponent guessing "3456," "0A0B" after the second round, and "1A1B" for the third round, and "2A" on the last round. We only allow 8 rounds to guess 4 digit puzzles.
Hope kids can play more of these logical games rather than FPS games...
I guess my brain is hardwired for this particular type of puzzle. Solved both in less than 10 minutes just by doing everything in my mind. Extremely fun stuff.
Guys, you all heard it; Mr. Talwalkar said I was a genius! Anyone who says different is calling him a liar, and I won't have that!
I love these type of puzzles. Solved them while taking a shower so it’s fun to have to keep track of the patterns in your head.
Imma try puzzle one.
Hint 3 eliminates 5,8,9,0.
Hint 2 means 3,4,6 are in the code.
Hint 5 means 6 is in pos 1, 4 is in pos 3 and eliminates 1 & 2
Hint 4 means 3 is in pos 2. So far we have 634X as the code.
Last number is 7 since it is the only number that isn't eliminated and wasn't already in the code. (each digit can only be used once.)
So the code is 6347.
You don't even need hint 1 to solve the puzzle.
Let's go I got it
Puzzle 1 Solution:
By using the first two clues, I can immediately deduce that 3 and 4 are two of the correct numbers. This eliminates 1 and 2 immediately. I can also deduce that 3 either goes in the first or third position, while 4 either goes in the second or fourth position.
Adding the third clue, I can deduce that 6 is the third correct number, therefore eliminating 5, and I can also eliminate 8, 9, and 0, since neither is correct. By process of elimination, 7 is the remaining correct number. Now there's just the matter of putting all four numbers in the correct positions.
As shown in the second clue, 6 must go into one of the first three positions. Using the fourth clue, I know that 3 goes into the second position, and using the last clue, 6 goes into the first position and 4 goes into the third position. This means 7 goes into the fourth position, so the code is 6347.
Puzzle 2 Solution:
Using the third grid, I can immediately deduce that 3 doesn't belong in the third column, 1, 4, and 7 all belong in the second row, and 6 and 9 belong in the third row. Using the first two grids, I know that 3 has to be in the first row and second column (the top edge), 4 belongs in the second row and second column (the center), 1 belongs in the second row and first column (the left edge), 7 is in the second row and third column (the right edge), 5 is in the third row and second column (the bottom edge), 2 is in the first row and first column (the top left corner), 6 is in the third row and third column (the bottom right corner), 9 is in the third row and first column (the bottom left corner), and by process of elimination, 8 (the remaining number) is in the first row and third column (the top right corner).
2:28, you went to the slower next clue. Sure it worked, but if you had gone to clue 1 instead you get to the answer faster; you've confirmed 3 and 4 are there, 1234 has two correct, so you eliminate 1 and 2 with a single clue rather than 2 clues.
I applied the Sudoku method for the second puzzle, where you write every possible number in the squares and then eliminate them.
Left vague to not spoil the answer:
Clues 3 then 2 then 1 will tell you in shorter order what the 4 numbers are. Then combine with clues 5 and 4 to get the order.
(Just annoying you never used clue 1 in the video)
I solved both, but I don’t have a great spoiler-free explanation/hint for the second one short of start by figuring out what DOESN’T go in certain rows/columns.
thank you, these problems were fun. I always enjoy when you put out your puzzle videos. 😃
The first puzzle is a boadr game named as "cows and bulls", where cow is a correct number on incorrect position, but bull is a totally correct
For the first puzzle, we don't actually need to know that out of 3456 three numbers are correct but in the wrong positions. Here's how I solved the puzzle without using this information:
Step 1: Out of 5890 nothing is correct, so numbers 5, 8, 9 and 0 are not correct
Step 2: Out of 6241 two numbers are correct and in the right positions; out of 1234 two numbers are correct but in the wrong positions. If number 2 is correct, then the puzzle is saying 2 is in the right position when it's in the second place and it's in the wrong position when it's in the second place, which contradicts itself, so in reality, 2 is not a correct number.
Step 3: Out of 2304 two numbers are correct. We know that 0 and 2 are not correct numbers, so 3 and 4 are correct.
Step 4: Out of 1234 two numbers are correct. We know that 3 and 4 are correct numbers, so 1 is not correct.
Step 5: Now, out of 0123456789, we eliminated all the numbers except 3, 4, 6 and 7, so they are the only four correct numbers.
Step 6: Figure out the order of these correct numbers (as shown in the video), then we can get 6347😎
The first code is like a game from the 1970s called "Mastermind", played with coloured pegs instead of numbers. Same logic applies. One player set up a concealed code, then the other made successive guesses, which were marked with black and white pins for correct in the correct place and correct in the wrong place. Scoring was in how many turns were needed. I think an advanced version had more than 4 spaces, but I don't remember how many colours were available.
The 2nd one was actually kind of fun to solve.
The grid puzzle seems to bear some similarity to Hamming codes and error correction.
Bro, I solved the puzzle on the preview picture. There is no solution for it here
My bad, the preview was swapped with another puzzle. Answer is 3841. The puzzle is from this video: ua-cam.com/video/ToIENnaMpLo/v-deo.htmlfeature=shared&t=112
@@MindYourDecisionsnice, I got it right. Thank you
Feels good getting both right. Now I sail the genius's ship along the others here.
Nicely explained. I can solve these on scratch paper, with a LOT of scribbling, but to do it in a nicely illustrated manner takes skill. 🙂
I played the first kind of puzzle when I was a kid (1980s), with small colored plastic pins instead of numbers. It was called Mastermind, I think.
First one is very easy solved within 5 minutes. Second one little bit hard didn't understand first then tried again and solved in 10 minutes. Both answers were correct.
My answer to second puzzle is:
R1: 2,3,8
R2: 1,4,7
R3: 9,5,6
One of my favourite videos of yours! I could do all 3 puzzles including the thumbnail, so that feels nice :D
I was able to solve both in a minute, and only needed to use paper for the grid one… idk if those are genius level logic puzzles
oh god
1:34 - use the clue which reveals the most information
2:26 - yeah I know that 3 and 4 are correct, but lets use clue 4 and5 to make it two steps instead of using clue 1 and notice that 1 and 2 are incorrect digits :D
First puzzle was ridiculously easy. I was stumped on the second until you showed your method of notation they it came together
I love the super solvable ones like these, even if it takes me a few minutes
0:53 6347
One thing that helps a lot with solving it is in the second row we know that 34 and 6 are in there because in row 3 5 is proven to be false.
Awesome puzzles! I solved the first one within seconds in my head, had to take notes for the second one tho
taking notes is the smart thing to do, given that the difficulty of the puzzle is unknown yet.
@@redfinance3403 i drew a 3x3 grid and entered every possible number in each cell and then systematically removed numbers, just like sudoku. Really fun!
Thanks for the easier puzzles.
@8:01 - nothing about this clue requires 3 to be the number in the correct row. Although the grid contains three digits, the text describes two digits with one property, and then one digit with a different, unrelated property, so the pigeon hole principal cannot be assumed to apply.
Note that you can get there by determining that 3, 4, and 5 must all be in the second column, and neither 4 nor 5 can be in the first row. But until you do, your solution from @8:01 onwards is unfounded.
The two properties are mutually exclusive though. If a number is both in the correct row and the correct column then it is in the correct square.
I feel to be a slow genius now ... :-) I liked a lot the second puzzle anyway!
I feel like doing a lot of variant sudoku has helped me solve puzzles like this (studying logic and math doesn't hurt either).
I think the first puzzle is solvable even with duplicate numbers allowed and comes out the same but probably makes it a bit harder but (again) from the first positions you took probably would have made it solved in the same number of steps.
I like how the first clue for the first puzzle wasn't actually necessary.
finally a puzzle i could actually solve
Yay! I got both right. They were fairly easy.
Solved both correctly, the first one in a few minutes, the second one took longer, about 10-12 minutes. But I never considered myself a genius 😂
I don’t think these puzzles might be a “genius test” )))
Though these puzzles are fun 😊
it always sounds so easy in the explanation part, but i can never figure it out on my own before that lol
So first seemed simple and i've spent few minutes to solve it, but was a bit unattantive and mixed 3 and 7. But I enjoyed it
I did puzzle 1 a bit differently
I started with nothing correct to eliminate 5 8 9 0
Then I looked at the second clue, eliminating 5 to get 3 4 and 6 in the pin
Then I looked at the first clue. As the first has two correct, the second has three correct, and 3 4 are in both, I can eliminate 1 and 2
Clue 5 gives us the position of 6 and 4
Clue 4 gives us the position of 3 as we know the position of 4
And the last is process of elimination.
6 3 4 7
I got the first puzzle, but the 2nd one messed with my mental processing - even though I used to do Sudoku quite a bit.
I was able to solve both. First puzzle was not too difficult, the second one was quite tedious.
The first puzzle I solved in my head. The second puzzle I used a similar concept but a little more complicated and got the right. Answer 😊
Thanks that was fun. First puzzle took about 90sec the second one about 6 minutes.
I love these!
Question 1 I did mentelly in like 3 minutes it wasn't hard.
Question 2 required 10 ish minutes and a sketch pad, but wasn't impossible by any means
I must be a genius then because I solved them both. 2nd puzzle was harder as I've not seen 1 of them before so I had to work out how to work it out. I did it completely differently but still got the same answer.
It's almost midnight and I did the second puzzle in my head. (Took me about 15-20 minutes I'd say) I can finally sleep.
Hi Presh. I had to clarify this.
A ‘PIN' is a “Personal Identification Number” which does not apply for a combination lock. People also talk about a "PIN number” (personal identification number, number 😀). Those of us that were around when PINs were first used, know what it stands for but I reckon most younger people do not.
The number for the lock, is a “combination number”.
Keep up the good work, I enjoy your videos.
Actually, the identification part just refers to the idea that the bearer is identified as a person who should have access. So, arguably, it could still be a PIN. It just happens that in this case access is granted to anyone identified as being able to solve basic logic puzzles 😂
I had a game when I was a child, which was very similar to the first puzzle, but instead of numbers there were colours.
ngl it took me a while to figure out both of them, but at the end the results matter. Tbh I think that all it takes is time and a piece of paper. The second one I think a bit harder, because you need to keep track of more numbers, but over time I stopped being scared to make assumptions what ultimately lead to success.
P. S. I worked though 1 and 2 grid first, because there was less numbers to keep track of. (all it took is to make assumptions whether 3 correct or 4 is, and then it's pretty just picking a number, and checking it though all 3 grids. )
Super easy, follow the logic. Thank you😊
In the second puzzle, the clues that no number was in the correct position were redundant.
it took me longer then i though. I had most of the numbers column sorted out and then it took me along time to realize that if i knew the numbers colmn, it means if i find the correct row, then that is just where its goes and i can solve the actual puzzle.
At 8m29s, you can also mark 71469 as being in the wrong column.
for the first one there's a game called.mastermind that I used to play as a child that had that principle
I solved the second puzzle without reading the first part of the third grid. I got there eventually anyway without any guessing though
1st hint, nothing known yet.
2nd hint, 3 and 4 have been repeated, so those two must be correct; another is unknown.
3rd hint, 5 is not correct, so in 2nd hint we can say 6 is the correct number.
Therefore: 3,4,6 are the 3 correct digits
4th hint, 3 and 4 are correct, one of the two is in correct position. It cant be 4 since it is in wrong position in 1st hint, so here also wrong; Thus 3 must be the one in correct position.
5th hint, 6 and 4 are correct, are also said to be in correct position, thus 634 is one portion.
0,1,2,5,8,9 were unavailable, so 7 must be the last number -> 6347
It would have been better to look at 1234 as the third clue for the first puzzle as it would have revealed that 1 and 2 were not in the pin, leaving only 7 as the fourth digit in the pin.
10:59 I also got the second puzzle right, though it took longer then i would like
Thumbnail: 3841
My bad, the preview was swapped with another puzzle. Answer is 3841. The puzzle is from this video: ua-cam.com/video/ToIENnaMpLo/v-deo.htmlfeature=shared&t=112
The first puzzle is a knockoff of the end of the _ClueFinders Reading Adventures_
Thank you.
The first one is incredibly easy. Around 20 seconds to solve it...and i'm way far to the genius status 😵💫. The second is easy too but a little bit longer due to the counting time.
puzzle 1 was easy but puzzle 2 took me like 30 minutes. i got stuck on the clue "1 number is in the correct row but incorrect square" because i completely ignored the "but in the incorrect square" part...
i got it right tho
This time is very easy, compared to other logic puzzles in this channel
it seems that this puzzle's already posted some time ago?
For the first puzzle you could've used clue 1 to eliminate 1 and 2 instead of using clues 4 and 5
The second puzzle is similar to sudoku. I like it
I got 4367 and 6347 on the first one and I didn’t have the 5th code, as I thought you were done, I just made it harder on my self
felt like mastermind and sudoku
Really easy puzzles. In th first puzzle I stopped the video after clue 4 (missing clue 5). I easily identified the correct digits, but got two solutions for the positions, namely 4367 and 6347 😂.
With the last clue it became much easier 🤣.