![Difficulty: 2 of 5 Difficulty: 2 of 5](http://perplexus.info/images/perplexus/diff/2.gif)
Posted on 2014-01-09 by Charlie (Solution Posted, 6 Comments)
![Difficulty: 2 of 5 Difficulty: 2 of 5](http://perplexus.info/images/perplexus/diff/2.gif)
Posted on 2012-02-19 by Ady TZIDON (Solution Posted, 4 Comments)
![Difficulty: 3 of 5 Difficulty: 3 of 5](http://perplexus.info/images/perplexus/diff/3.gif)
Posted on 2012-01-04 by Ady TZIDON (Solution Posted, 8 Comments)
![Difficulty: 2 of 5 Difficulty: 2 of 5](http://perplexus.info/images/perplexus/diff/2.gif)
Posted on 2012-08-16 by Ady TZIDON (No Solution Yet, 8 Comments)
![Difficulty: 3 of 5 Difficulty: 3 of 5](http://perplexus.info/images/perplexus/diff/3.gif)
Posted on 2012-04-11 by K Sengupta (Solution Posted, 6 Comments)
![Difficulty: 3 of 5 Difficulty: 3 of 5](http://perplexus.info/images/perplexus/diff/3.gif)
Posted on 2019-09-01 by Brian Smith (No Solution Yet, 16 Comments)
![Difficulty: 1 of 5 Difficulty: 1 of 5](http://perplexus.info/images/perplexus/diff/1.gif)
Posted on 2021-12-29 by Ady TZIDON (Solution Posted, 8 Comments)
![Difficulty: 3 of 5 Difficulty: 3 of 5](http://perplexus.info/images/perplexus/diff/3.gif)
Posted on 2012-07-22 by Ady TZIDON (No Solution Yet, 2 Comments)
![Difficulty: 2 of 5 Difficulty: 2 of 5](http://perplexus.info/images/perplexus/diff/2.gif)
Posted on 2012-03-24 by Ady TZIDON (Solution Posted, 7 Comments)
![Difficulty: 3 of 5 Difficulty: 3 of 5](http://perplexus.info/images/perplexus/diff/3.gif)
Posted on 2012-05-20 by K Sengupta (No Solution Yet, 7 Comments)
![Difficulty: 3 of 5 Difficulty: 3 of 5](http://perplexus.info/images/perplexus/diff/3.gif)
Posted on 2023-09-21 by K Sengupta (Solution Posted, 77 Comments)
![Difficulty: 3 of 5 Difficulty: 3 of 5](http://perplexus.info/images/perplexus/diff/3.gif)
Posted on 2019-07-03 by Charlie (Solution Posted, 13 Comments)
![Difficulty: 3 of 5 Difficulty: 3 of 5](http://perplexus.info/images/perplexus/diff/3.gif)
Posted on 2012-01-11 by Dustin (Solution Posted, 10 Comments)
![Difficulty: 1 of 5 Difficulty: 1 of 5](http://perplexus.info/images/perplexus/diff/1.gif)
Posted on 2011-08-07 by Ady TZIDON (Solution Posted, 4 Comments)
![Difficulty: 3 of 5 Difficulty: 3 of 5](http://perplexus.info/images/perplexus/diff/3.gif)
Posted on 2016-01-15 by Ady TZIDON (No Solution Yet, 2 Comments)
![Difficulty: 3 of 5 Difficulty: 3 of 5](http://perplexus.info/images/perplexus/diff/3.gif)
Posted on 2015-06-17 by broll (Solution Posted, 9 Comments)
![Difficulty: 4 of 5 Difficulty: 4 of 5](http://perplexus.info/images/perplexus/diff/4.gif)
Posted on 2019-02-10 by Brian Smith (No Solution Yet, 3 Comments)
![Difficulty: 5 of 5 Difficulty: 5 of 5](http://perplexus.info/images/perplexus/diff/5.gif)
Posted on 2019-05-21 by Math Man (No Solution Yet, 10 Comments)
![Difficulty: 4 of 5 Difficulty: 4 of 5](http://perplexus.info/images/perplexus/diff/4.gif)
Posted on 2012-08-12 by Charlie (Solution Posted, 33 Comments)
![Difficulty: 3 of 5 Difficulty: 3 of 5](http://perplexus.info/images/perplexus/diff/3.gif)
Posted on 2022-10-27 by Ady TZIDON (Solution Posted, 28 Comments)