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Cryptography Challenge #20!
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on 02:59:50 am 09/10/07 (edited 07:43:11 am 01/09/09)
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Welcome to Gendou.com Cryptography Challenge #20! The goal of this game is recover the secret picture, which was drawn out by several dots. At rest during time0, each dot was given some random momentum that sent it flying. Now, at time13, the dots are in this configuration:  The dots travel in a vacuum and never hit each other, but do bounce elastically off the walls as seen below:  Once you do this, tell me what the secret picture depicts in a forum message by clicking here. If you decode it correctly, I will give you a level up and put your name on the scoreboard! hint 1 hint 2 hint 3 hint 4 hint 5 Scoreboard:
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Re: Cryptography Challenge #20!
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on 07:08:54 am 09/26/07 |
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I have 2 questions, please answer if they're relevant: 1. Are we supposed to find what the picture is at time0? 2. The dots started moving to the left or to the right? Thanks.  |
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Re: Cryptography Challenge #20!
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on 07:14:56 am 09/26/07 |
I did it a quarter of the code and got all confused... I seem to have a few dots on the same line... is this normal?  A friend of today is an enemy of tomorrow. I am an empty shell. I don't feel loved at all |
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Re: Cryptography Challenge #20!
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Finished this one in a few minutes after seeing it... just waiting on Gendou Ivonne.... #1) yes, you are looking for what the pic was at T=0... #2) the dots randomly scattered.. each individual dot's speed remained the same, and trajectory is only affected by bouncing at a perfect reflective angle off a wall... look at the bouncing ball pic... the top left number is it's X, bottom left is it's Y, top right is DX, bottom right is DY.... with good enough eyes, you might notice that the values for DX and DY remain the same, except the sign of the two values keeps changing depending on the direction it's going Reinforce... well, "the goal is to recover the secret picture"... if the secret picture has a straight line in it, then this would be correct, otherwise it wouldn't be... |
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Re: Cryptography Challenge #20!
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on 08:53:09 am 09/27/07 (edited 10:23:10 pm 09/27/07)
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sent my answer to Gendou...i hope my answer is correct :P btw if i'm wrong can i send another answer??? =========================================================== edit : forunately my answer is correct :P   |
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Re: Cryptography Challenge #20!
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| yes, if you're ever wrong you can always send another and another... |
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Re: Cryptography Challenge #20!
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| I know how I would solve this, but I have neither the resources to automate the process nor the patience to do each by hand. Sorry. |
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Re: Cryptography Challenge #20!
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on 11:34:04 am 09/30/07 |
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Aww, Cauchy, if you solve a few points at random, you might see a pattern forming pretty quickly.
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Re: Cryptography Challenge #20!
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Do I have to send the image or just tell him what it is like?  |