puzzle 3 gets an eye roll from me. 'line of coins' and a 'line that passes through 4 coins' is a big enough semantic difference that I am more annoyed by how the question is posed than by how 'clever' the solution is.
I don't think inequalities are ever accepted as valid answers for matchstick puzzles, but you're correct in the first one either way AS LONG AS the result isn't strictly specified to be an equation. Not sure about the second one, since you could argue you could just twist one of the matchsticks, but really for it to look like a traditional greater than sign, you'd need to twist both of the matchsticks.
On the 3rd puzzle, you don't even need to move any coins, since the 3 coins combine with the word "coin" outside the box line up to make a horizontal line of 4 coins, and the vertical line of 4 coins is obviously right here, so there we go, 2 lines of 4 coins without moving any coins!!
For puzzle 4, the more “elegant” solution (to me) is to move the vertical line of the plus to the right side of the 5 to make it a 9, making the equation 9-7=2.
Actually didn't get the solution for the first puzzle because I was thinking drawing straign b to b and c to c then drawing a line from a to a through the back of the paper... Was thinking too out of the box there. Got the rest quite easily though granted I've seen the matchstick ones already
for puzzle 6 theres another solution. you take a tilted square confining 2 prisoners in each corner, and then overlay a mirrored tilted square seperating the 2 people in each corner, with the middle person inside both squares
Move the bottom match of the 7 to make it a smaller 7 and place it to the left of the two as a smaller 1 making 5+7=12 Move the top match of the equal sign into an angle to make 5+7>2
Puzzle 2 is overly contrived. Puzzle 3 is wrong, since a line is 1-D. There are only three colinear coins in each line in our 3-D world. I did like the second solution to puzzle 6.
Wrong solution to puzzle #3. He showed the same "solution" I came up with, but it's not a real solution, since the "line" misses the top coin in the first box. In this type of puzzle, a "line" doesn't expand to more dimensions in the solution than it had at the start. If it connects three coins to start with, then placing a coin on top of one of them means that coin doesn't touch that line. This would be a cute solution if the wording were changed a bit, though.
First one was easy too when you see there is no way around A so you have to do that last. You start connecting B or C by drawing the shortest line. Then connect the other one as best as possible. And then you can actually see there is only one way to connect A.
Puzzle 3 is incorrect, a lime is 2d not 3d so that isnt possible, id rather agree that i take a coin from the question and move it. Puzzle 4 alternative solution use any stick and make a strikethrough through the equal not it could say 5-7 =/=2
I'm not sure I accept the cylinder dodge as a solution. When we say "a line" we're always talking about a straight line or, in other words, a line that follows the geodesic of the form. A spiral around the cylinder isn't a line by that definition and is akin to solving the puzzle when it's flat by drawing a curved squiggle that connects all the dots and calling it a line.
The cylinder solution is a straight line. Straight lines on the cylinder that are not parallel to the top/bottom edge will form a spiral (and they are following geodesics on the cylinder). The solution is fundamentally the same idea as the “3 line zig-zag” solution, in that it only works if the “dots” are allowed to have some size so the angled line can pass “through” them without actually passing through their center. But the cylinder allows the ends of true zigzag to be connected so they end up as one line, instead of three.
puzzle 3 gets an eye roll from me. 'line of coins' and a 'line that passes through 4 coins' is a big enough semantic difference that I am more annoyed by how the question is posed than by how 'clever' the solution is.
Yeah puzzle 3 is BS.
I imagined pointing out curved lines to solve it
Yep, there are some nice out-of-the-box puzzles, but this is really not one of them. This requires you to think outside of semantics, not the box.
can i eat the box. so we will allways be outside it
You saved me from watching 8 hours of Facebook videos of people taking hours to solve simple riddle problems. Thanks!
5:40 move the top 7 match to the equal sign, you will have 5 + 1 ≠ 2, you can also twist the equal sign: 5 + 7 > 2.
But for the second example u have to move 2 matches not 1
@@diyorbekjoraboyev_ puzzel before the puzzelyou are thinging of
maybe its different in english but as far as i know equation means there has to be =
I don't think inequalities are ever accepted as valid answers for matchstick puzzles, but you're correct in the first one either way AS LONG AS the result isn't strictly specified to be an equation. Not sure about the second one, since you could argue you could just twist one of the matchsticks, but really for it to look like a traditional greater than sign, you'd need to twist both of the matchsticks.
Puzzle 3 needs to better define what a "line of 4 coins" means.
On the 3rd puzzle, you don't even need to move any coins, since the 3 coins combine with the word "coin" outside the box line up to make a horizontal line of 4 coins, and the vertical line of 4 coins is obviously right here, so there we go, 2 lines of 4 coins without moving any coins!!
For puzzle 4, the more “elegant” solution (to me) is to move the vertical line of the plus to the right side of the 5 to make it a 9, making the equation 9-7=2.
4:34 a class of solutions I like is to make a not equal to sign
The problem with that approach is that it is no longer an equation. It is an inequality. Two different things.
Puzzle 3. You could also move one of the lower coins outside of box to left of top row creating 5 coins in a row. You then have 2 lines of 4 coins.
I'm blown away from the last one with one line!!! 👍👍👍😳😳😳🙂🙂🙂
That was the brute force solution.
The "thick marker" idea is rather clever.
puzzle 4 - you can take the verticle matchstick again, and lay it on the = sign diagonally, making the true statement 5-7 =/= 2
The problem says to make the "equation" true. An inequality is not an equation.
Got them all except for the house. Which is particularly frustrating given that I've seen the solution before but it just wouldn't come to me.
In the last Puzzle you can do with a single line only, as the lines do not have to be straight.
got the one in the thumbnail pretty quickly, draw a tilted square across the whole square then draw a square to isolate the middle
Actually didn't get the solution for the first puzzle because I was thinking drawing straign b to b and c to c then drawing a line from a to a through the back of the paper... Was thinking too out of the box there.
Got the rest quite easily though granted I've seen the matchstick ones already
for puzzle 6 theres another solution. you take a tilted square confining 2 prisoners in each corner, and then overlay a mirrored tilted square seperating the 2 people in each corner, with the middle person inside both squares
Puzzle 4: move the vertical match of the plus sign onto the equals sign, to form 5+7 != 2.
Another solution for the last one is to draw a spiral pattern to connect all the dots, only using one line
Move the bottom match of the 7 to make it a smaller 7 and place it to the left of the two as a smaller 1 making
5+7=12
Move the top match of the equal sign into an angle to make
5+7>2
Problem 7: If we can manipulate the paper, go all the way and fold up the paper so the 9 dots coincide and then draw ZERO lines to connect them!
I found the isolation puzzle, with two squares, to be pretty easy.
Presh line is one D
Puzzle 2 is overly contrived.
Puzzle 3 is wrong, since a line is 1-D. There are only three colinear coins in each line in our 3-D world.
I did like the second solution to puzzle 6.
Especially since you're explicitly invoking the third dimension to solve the puzzle. Those are not lines they are L-shapes.
The puzzles where one can move just one piece are easier as one easily sees the solutions that do not work.
The only puzzle I wasn't able to solve was no. 3.
Wow 1 more amazing puzzle video
Out of the box ❤❤❤😊
Puzzle 4:
5 - 7 ≠ 2
5 + 1 ≠ 2
Missed opportunity to call it *thicc marker* 😅
How about 5 - 7 is not equal to 2. Move the horizontal stick from the 7 and make the equal sign a not equal sign.
Fairly simple
all but the 3rd one because i didnt realise that was allowed
Wrong solution to puzzle #3. He showed the same "solution" I came up with, but it's not a real solution, since the "line" misses the top coin in the first box. In this type of puzzle, a "line" doesn't expand to more dimensions in the solution than it had at the start. If it connects three coins to start with, then placing a coin on top of one of them means that coin doesn't touch that line. This would be a cute solution if the wording were changed a bit, though.
5:26
You can also use to create sign "not equals to"
1/ i can also make cylinder from this green piece of paper, when A connect with A, and then simple connect Bs + Cs
First one gave me panic 😮. Rest were easy. First attempt 🥇
First one was easy too when you see there is no way around A so you have to do that last. You start connecting B or C by drawing the shortest line. Then connect the other one as best as possible. And then you can actually see there is only one way to connect A.
Puzzle 3 is incorrect, a lime is 2d not 3d so that isnt possible, id rather agree that i take a coin from the question and move it.
Puzzle 4 alternative solution use any stick and make a strikethrough through the equal not it could say 5-7 =/=2
I'm not sure I accept the cylinder dodge as a solution. When we say "a line" we're always talking about a straight line or, in other words, a line that follows the geodesic of the form. A spiral around the cylinder isn't a line by that definition and is akin to solving the puzzle when it's flat by drawing a curved squiggle that connects all the dots and calling it a line.
The cylinder solution is a straight line. Straight lines on the cylinder that are not parallel to the top/bottom edge will form a spiral (and they are following geodesics on the cylinder).
The solution is fundamentally the same idea as the “3 line zig-zag” solution, in that it only works if the “dots” are allowed to have some size so the angled line can pass “through” them without actually passing through their center. But the cylinder allows the ends of true zigzag to be connected so they end up as one line, instead of three.
Puzzle number 1 have uploaded 9 years ago in MindYourDecisions
ua-cam.com/video/NwRC3bRhw9c/v-deo.htmlsi=q8TBDIuUg2IFwZdq
Where’s the two thumbs down icon?
5 + 7 > 2
In problem one, those are not lines
NO I FORGOT TO THINK OUTSIDE OF THE BOX
in puzzle 4 you can also take the top matchstick off of the 7 and place it on the 2 making the equation 5+1=6
How are you making that 6 from a 2? It would be backwards.
Puzzle 3 is cheating 😂