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Author Topic: A puzzle for y'all  (Read 676 times)

PeterAit

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A puzzle for y'all
« on: August 26, 2021, 08:48:43 am »

Move one and only one matchstick to make a correct equation. I know of 3 solutions.

Let's hold off posting answers for a couple of days to give others the chance to ponder, OK?
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Eric Myrvaagnes

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Re: A puzzle for y'all
« Reply #1 on: August 26, 2021, 11:45:15 am »

From what original setup? Is there supposed to be an image that accompanies this post?
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PeterAit

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Re: A puzzle for y'all
« Reply #2 on: August 27, 2021, 03:26:13 pm »

From what original setup? Is there supposed to be an image that accompanies this post?

Yikes, for sure! Here it is.
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Eric Myrvaagnes

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Re: A puzzle for y'all
« Reply #3 on: August 27, 2021, 05:16:35 pm »

Got it.

I'll give others a chance before I display my answer.
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PeterAit

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Re: A puzzle for y'all
« Reply #4 on: August 28, 2021, 09:57:17 am »

Got it.

I'll give others a chance before I display my answer.

Great! Remember there are 3 answers (at least).
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Eric Myrvaagnes

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Re: A puzzle for y'all
« Reply #5 on: August 28, 2021, 11:24:58 am »

OK, now I've got two.
Still working on the third.
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Eric Myrvaagnes

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Re: A puzzle for y'all
« Reply #6 on: August 28, 2021, 11:38:35 am »

Aha!!!

I finally figured out the third solution.

I'll start posting my solutions in a week. I hope some others will try before then.

-Eric
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degrub

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Re: A puzzle for y'all
« Reply #7 on: August 28, 2021, 10:13:59 pm »

I’ve got 2 + 1 depending on how strict the font.
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petermfiore

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Re: A puzzle for y'all
« Reply #8 on: August 29, 2021, 01:31:32 am »

I have three...

PeterAit

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Re: A puzzle for y'all
« Reply #9 on: August 29, 2021, 10:51:48 am »

OK gang, here are the three I have come up with.

  • Move the vertical match of the + sign to make the 6 into an 8: 8-4=4
  • Rotate the upper horizontal match of the 6 to make it a 0: 0+4=4
[li]Move the vertical match of the + sign and lay it diagonally across the = sign to make a not-equal sign: 6-4≠4
[/li][/list]

I'd love to hear any I missed!
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Eric Myrvaagnes

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Re: A puzzle for y'all
« Reply #10 on: August 29, 2021, 11:32:22 am »

Here's one more:

Remove the left-lower vertical matchstick from the 6 making it into a 5.
Place that matchstick horizontally on top of the right-side 4 making it into a 9.

Result: 5 + 4 = 9.

 :)
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petermfiore

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Re: A puzzle for y'all
« Reply #11 on: August 29, 2021, 02:45:56 pm »

I got 5+4=9, 0+4=4,  and 8-4=4

Peter

PeterAit

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Re: A puzzle for y'all
« Reply #12 on: August 29, 2021, 05:36:29 pm »

Here's one more:

Remove the left-lower vertical matchstick from the 6 making it into a 5.
Place that matchstick horizontally on top of the right-side 4 making it into a 9.

Result: 5 + 4 = 9.

 :)

Odd looking 9, but OK!
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EricV

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Re: A puzzle for y'all
« Reply #13 on: August 29, 2021, 09:06:39 pm »

There are a lot more if you allow a (not equal) sign.
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