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2021-01-15 09:54 nesdori  
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nice idea! i guess you got inspired by your cipher idea :) some parts of the inner workings of the machine are a bit strange and three of the slots can be left empty. not sure if it's intended design or some kind of flaw.. :)

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2021-01-15 10:29 DarkStoorM  
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Thanks  nesdori ! Yes, it was a bit related, more of a test cave. I have a bigger version, which mixes diamonds with falling boulders from the "input", but that is way harder to do :P  
  
About the "insides", I expected there can be many solutions. The way I made this cave was dropping a random combination into the input, releasing the boulders and watching them fall, then adjusting the inner parts. Some may look weird, that's because I had to find a way to "separate" boulders while they fall - they just didn't want to roll to left and right. The previous roll-and-fall creates a 2 space gap, so when the first boulder falls to the left, the second boulder didn't see a blocked path, but that was fun to experiment with!  
  
On the way there are "slots" that have to be filled with more boulders to create a rolling path.

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2021-01-15 12:16 dustin  
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i like the idea a lot too! :D  
i also left slots empty, but overfilled others ;)

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2021-01-15 12:32 nesdori  
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 dustin , right, by overfilling it's possible to leave four slots empty :)

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2021-01-15 13:17 DarkStoorM  
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SInce quite a bit solutions are possible, I will reveal the intended combination later! :D

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2021-01-15 18:53 DarkStoorM  
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The intended combination was 7 5 3 8 4 6 1 5 3. It was a fun experiment, but it might be too hard to make it accept only one combination! :D

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2021-01-15 18:56 nesdori  
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my solution is: 0 0 6 8 5 5 2 0 3 :)

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2021-01-15 19:04 nesdori  
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 darkstoorm , it's possible to force just one solution with some tweaking. if  Arno  made this there would have been a single solution, heavy boulders and gwall gates to stop undesired access back to the slot section :)

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2021-01-15 19:12 DarkStoorM  
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 nesdori , I was also thinking that the last object could be a diamond that drops after the boulder that crushes the fly, but I didn't have any ideas for that without any abusing :p  
  
And oh, right, with gwall it would be a nice remix ;)

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2021-01-16 00:44 dustin  
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mine is 7 8 0 10 0 2 0 3 ;D

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2021-01-16 00:47 dustin  
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correction: 7 8 0 8 10 0 2 0 3