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| Posted by HellCold | 02/05/09 |
| Excellent one. Really great... |
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| Posted by precious1026 | 02/07/09 |
| :evil: Did your really think someone could follow that train of thought without a paycheck? I usually like all teasers, but this one was off the hook. But once I saw your train of thought and looked at the six digit number, which you led people to believe, the six digit number could have been any sic digits. I love Braingle. :evil: and you too. Good Teaser, boring but good, I hope you are truly good in math? You are not lying to us? :evil: |
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| Posted by javaguru | 02/07/09 |
| I think the train of thought in the teaser was easier to follow than your comment...did you have a point? :roll: |
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| Posted by sfun3 | 02/08/09 |
| loved this one as well! Excellent thinking!:D |
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| Posted by ronhoward | 02/08/09 |
| Wow. :o The train of thought ran right over me!
This seemed to be impossible at first, at least impossible to have a unique solution. It was amazing how as I worked on it the choices kept narrowing down. I thought this one was actually quite a bit easier than your Polygonal House teaser, probably because I got the "aha!" quicker on this one. :D
Another incredible teaser! Keep 'em coming! :D :D
How do you come up with these? :o |
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| Posted by javaguru | 02/08/09 |
| Thank you ron for the comment and complement! :)
When creating a teaser, first I try to find some interesting principle or quirk of math, probability or logic to exploit. Then I play around with different ideas using it until I find one I like. Then I try to (at least in the case of the Rex and Ralph teasers) determine what the minimum set of information will allow the solution to be determined. After I've worked out the math, at some point I get around to creating the teaser. I have about a dozen teasers right now where I've completed the math aspect, but just haven't had time to write a pleasing teaser around the math. In a few cases the teaser is written, but I haven't been able to simplify the explanation as much as I'd like.
I guess the main other "secret" to writing a good teaser is to be your own harshest critic. I discard most of my ideas and keep some around for a quite a while because they just don't feel right.
I know there's a large portion of the population on Braingle that won't ever appreciate my teasers because they require real effort, but I'm OK with that. I like them. :wink: |
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| Posted by sfun3 | 02/09/09 |
| Can't wait for the next one. :wink:
I can only really deeply appreciate all the thought going into those puzzles. I can solve them, but it is sooo much harder to come up with a good puzzle and construct an interesting story around it.
And don't worry about the community, there are enough of us loving these kind of puzzles. 8) |
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| Posted by shooter800 | 04/28/09 |
| great work , but that suppose to have one solution i think it have more than one lets see
145823
that number is prime and all of your conditions approved |
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| Posted by shooter800 | 04/28/09 |
| sorry u wrote "If each of the three numbers formed by the digit pairs in the number is prime, then what is the number?"
but i read each ( any) great puzzle thank u |
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| Posted by bigpat | 05/08/09 |
| Great puzzle. I solved the puzzle slightly differnetly than the given solution. I assumed (and wrongly) that zero wasn't one of the answers. Turns out I still got the right answer and after a little thinking I figured out that my method would have still eliminated zero so its all good :) |
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| Posted by Lightspeed | 05/08/09 |
| I think this is the best puzzle where you have to figure out the number from clues about the digits. I love how at first it doesn't seem like there is enough information to arrive at a unique answer. I played around with the sum of the six numbers for a little bit before recognizing that each column in the sum contained the same set of digits. The Aha! moment was great!
Brilliant puzzle! :D :D :D |
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| Posted by rlc327 | 07/19/10 |
| I got 314113 (we'll call that number x)
digital sum (aka sum of digits or SOD) = last 2 digits : 13 = 13
SOD 1st 2 = SOD last 2 : 4 = 4
x rotated "a lot : 1444443
1st and last of "x rotated a lot" = last 2 digits of x : 13 = 13
Prime number digit pairs : 31, 41, and 13. |
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| Posted by rlc327 | 07/19/10 |
| continuation of above:
but the teaser was GREAT. i'd love to see more of these! |
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| Posted by javaguru | 07/19/10 |
| ric: Your answer doesn't meet the criteria "all digits are different". |
