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Author Topic: Countdown Numbers Game  (Read 18081 times)

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Offline Minim

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Re: Countdown Numbers Game
« Reply #30 on: September 05, 2009, 10:45:30 AM »
This one is not impossible, but it's hard to find. Here's a solution:

Quote from: 149 solution
(6+5)*6*2+9+8=149

I really didn't want to do that, but with every puzzle I make, I always check the solver to see if it works.
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Offline Clam

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Re: Countdown Numbers Game
« Reply #31 on: September 05, 2009, 11:17:25 AM »
I've been quietly watching this thread (much as I don't care for post counts, I don't care for forum games either. I do like maths though...), and I thought this was one of the easier ones so far. I found a different solution:

Quote from: another 149 solution
(9 - 6) * 6 * 8 + 5 = 149
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Offline Proxima

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Re: Countdown Numbers Game
« Reply #32 on: September 05, 2009, 11:41:06 AM »
My solution was different from either of yours, and used fewer numbers :)

Quote from: another 149 solution
(9 x 8 x 2) + 5

It bears some resemblance to minimac's solution to my 232 puzzle, which was much more efficient than either Daniel's or mine. Here's how I solved it:

Quote from: my 232 solution
(100 - 8 - 7 - 6) x 3 - 5

Clam Spammer gets to go next :)

By the way, as regards Dullstar's question, he was right; there are no impossible target numbers. Any target can be made if your numbers include the three digits of the target and two 10s :P
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Offline Clam

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Re: Countdown Numbers Game
« Reply #33 on: September 05, 2009, 11:48:32 AM »
Quote from: Proxima on 2009-09-05 05:41:06
Clam Spammer gets to go next :)

Whoa, hang on a second.
1) I don't have a puzzle to post, and it's getting late here so I won't have one for a while
2) minimac posted a solution so it's already been given away
3) I don't care for forum games, as I just said.

So if you want to post a puzzle now, go ahead.
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Offline Proxima

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Re: Countdown Numbers Game
« Reply #34 on: September 05, 2009, 12:02:37 PM »
Okay  :thumbsup:

Next puzzle: 674

100, 50, 10, 7, 3, 3
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Offline Minim

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Re: Countdown Numbers Game
« Reply #35 on: September 05, 2009, 02:31:06 PM »
Not as bad as you think, here's a solution:

Quote
(100-10)*7+50-3-3

Next puzzle: 715

25, 8, 3, 10, 9, 1
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Offline Proxima

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Re: Countdown Numbers Game
« Reply #36 on: September 05, 2009, 11:49:40 PM »
Quote
(25 x 10 - 9) - 8

Next puzzle: 478

100, 50, 9, 2, 4, 4
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Offline Minim

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Re: Countdown Numbers Game
« Reply #37 on: September 06, 2009, 07:36:34 AM »
I can do 477 so far...

EDIT: I did it!

Quote
(50+4)*9-(4*2)

Next puzzle: 846 "The first number shown in the game!"

50, 3, 6, 3, 8, 10
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Offline Proxima

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Re: Countdown Numbers Game
« Reply #38 on: September 06, 2009, 12:45:24 PM »
Neat solution, and very different from mine:

Quote
(4 x 100) + 50 + ((9 - 2) x 4)

Soluiton to 846 (not too difficult):

Quote
(50 - 3) x (8 + 10)

Next puzzle: 348

100, 2, 6, 4, 1, 2
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Offline Minim

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Re: Countdown Numbers Game
« Reply #39 on: September 06, 2009, 02:06:32 PM »
Here's 348

Quote
(2+1)*100+(2*4*6)

Next puzzle: 901

75, 3, 9, 5, 8, 6
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Offline Proxima

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Re: Countdown Numbers Game
« Reply #40 on: September 06, 2009, 03:12:40 PM »
Or, since addition is commutative, I can just write (8 + 10) instead of the other way round :)

901 was far too easy:

Quote
75 x (9 + 3) + 6 - 5

Next puzzle: 673

100, 4, 9, 10, 3, 6
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Offline Minim

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Re: Countdown Numbers Game
« Reply #41 on: September 06, 2009, 05:46:28 PM »
(This is the 4000th post on the lemmings forums!)

675 is what I can do so far...

EDIT: Finally did it!

Quote
(100+10)*6+4+9

Next puzzle: 427

25, 2, 6, 4, 7, 8
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Offline Proxima

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Re: Countdown Numbers Game
« Reply #42 on: September 08, 2009, 01:00:43 AM »
Nice one! My solution was more complicated:

Quote
(100 + 4 x 3) x 6 + 10 - 9

Solution to 427 (a bit too easy):

Quote
25 x (6 + 4 + 7) + 2

Next puzzle: 584

50, 25, 9, 5, 9, 8
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Offline Minim

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Re: Countdown Numbers Game
« Reply #43 on: September 08, 2009, 07:31:20 AM »
Quote from: 584 solution
8*(50+9+5+9)

Next puzzle: 356

75, 6, 10, 7, 3, 7
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Offline Proxima

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Re: Countdown Numbers Game
« Reply #44 on: September 08, 2009, 09:00:59 PM »
Excellent puzzle!

Quote from: 356 solution
6 x (75 - 7 - 7) - 10

I'm all out of puzzles now, I'm afraid...
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