Google's interactive doodle in celebration of Alan Turing's 100th birthday

http://www.google.co.nz/

by antichaos • 14 years ago

44 13 14 years ago

google.co.nz

nthitz• 14 years ago

Ok I get that it's emulating a turing machine, but can anyone explain what you are supposed to do with this?

sp332• 14 years ago

Each puzzle that you complete colors in another letter in the logo. Here's a video walkthrough: http://www.youtube.com/watch?v=84pbZSt_a9k

djabatt• 14 years ago

I guess have fun with it.

TazeTSchnitzel• 14 years ago

No. Solve puzzles. When you run it, it checks each number to see if it matches the expected result shown in the top-right.

antichaos• 14 years ago

Once you complete the six puzzles, click the bunny button to get some more challenges.

fbeeper• 14 years ago

Why is there a bunny?

MitziMoto• 14 years ago

Because it leads you down a rabbit hole of unproductivity.

hk_kh• 14 years ago

Curious about what the final-final TM does:

    "1 . D1 . .  .  . _  R  D_ B2"
    "R U _  R D_ B2 . 1  B8 1  D_ L  B2"
    "U . B2 . 1  R  0 U_ L  B2 0  B9"

Was it just spitting binary words?

I am too lazy to redo the previous 12 TM again. If you get there, do not reload.

kibwen• 14 years ago

I found a way to get an infinite loop on one of the puzzles, but it looks like the machine halts after a fixed number of iterations. Does this mean it doesn't meet the criteria necessary to be considered a Turing machine?

Spoom• 14 years ago

I think it checks if you get far enough on one side or the other of the preprinted numbers on the tape that the numbers can no longer be seen, at which point it declares an infinite loop and restarts. Sure, technically it should keep going, but it's a game.

Xlythe• 14 years ago

There are puzzles where it's very easy to loop it forever, while not straying from the prepreinted numbers. It's more likely just the number of iterations.

Here's an example where it loops up/down. It speeds up and then "burns out": https://dl.dropbox.com/u/80052639/Screenshot%20from%202012-0...

bayleo• 14 years ago

I'm just getting a static jpg; did they take it down?

http://www.google.co.nz/logos/2012/turing-doodle-static.jpg

pbrumm• 14 years ago

The doodle was surprisingly enjoyable. I would love for an iphone or ipad version. Sudoku for programmers.

Google's interactive doodle in celebration of Alan Turing's 100th birthday

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