Technical Blog

# Alan Turing - Google Doodle Solved

, 25 Jun 2012 CPOL
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Google, breaking the pragmatism of creating artistic doodles, has showed up a geeky doodle which is a gate way to Google search results for the greatest mathematician, natural code breaker Alan Mathison Turing who with his inventions laid the strong foundation for modern computing world. The " Alan

Google, breaking the pragmatism of creating artistic doodles, has showed up a geeky doodle which is a gate way to Google search results for the greatest mathematician, natural code breaker Alan Mathison Turing who with his inventions laid the strong foundation for modern computing world. The " Alan Turning Doodle " which is showed  up on Google's home page today is a tribute this ingenious.

I didn't care much to solve this doodle for the first couple of Google searches that I made today, but each time I opened Google's home page, it was be-knocking at me by tacitly asking to be solved. I began and It took little time to understand the problem to be solved and here it is.

## Problem to be Solved

• User is expected to, match the pattern displayed at the right top corner of the doodle.
• To match patterns it is required to shift bits, either 0 or 1 which can be set explicitly.
• Each time the bits are set , doodle starts matching the modified pattern with the target pattern.
• And if the match is successful, each letter of the word "GOOGLE" is decoded, i.e each character's color changes from gray scale to colored.
• Once all the characters of the world "Google" is decoded, Google redirects you to page displaying search results for Alan Turning

## Approach

This is more of a permutation problem combined with need to set or unset the bits appropriately.

each time a character is decoded, the level and hence the complexity of the problem increases.

## Decoding Patters for each character

```G = 01011
O = 00011
O = 00011
G = 01011
L = 01001
E = 10000```

## And Here is how I did It

Though I could capture most, but few screenshots are missed.

### Decoding E

It took a little time for me to solve, but it was worth of it.

## Share

Engineer
India
I am Vijay hailing from Bangalore, the silicon valley of India. I posses extensive expertise working in mobility domain. I have a natural propensity for "Research and Innovation".

My areas of interest include Pervasive computing, Cognitive sensors, HCI, and Multimedia. Being strongly resolute with an everlasting fervor for learning, over the years I have learnt to come out of comfort zone to experiment with state of the art technologies and to contribute to developer community.

I blog about innovations and latest technologies from mobility domain, about development environments and programming languages across different platforms.

Blog : Amusement of a speculative mind...[^]
Projects : Amusement of a dilettante mind...[^]
LinkedIn : Vijay D R [^]

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