![Difficulty: 3 of 5 Difficulty: 3 of 5](http://perplexus.info/images/perplexus/diff/3.gif)
Posted on 2006-07-25 by Ravi Raja (No Solution Yet, 8 Comments)
![Difficulty: 3 of 5 Difficulty: 3 of 5](http://perplexus.info/images/perplexus/diff/3.gif)
Posted on 2006-05-26 by Ravi Raja (No Solution Yet, 7 Comments)
![Difficulty: 3 of 5 Difficulty: 3 of 5](http://perplexus.info/images/perplexus/diff/3.gif)
Posted on 2006-05-19 by Ravi Raja (No Solution Yet, 6 Comments)
![Difficulty: 2 of 5 Difficulty: 2 of 5](http://perplexus.info/images/perplexus/diff/2.gif)
Posted on 2006-05-18 by Ravi Raja (Solution Posted, 10 Comments)
![Difficulty: 3 of 5 Difficulty: 3 of 5](http://perplexus.info/images/perplexus/diff/3.gif)
Posted on 2006-05-15 by Ravi Raja (No Solution Yet, 3 Comments)
![Difficulty: 3 of 5 Difficulty: 3 of 5](http://perplexus.info/images/perplexus/diff/3.gif)
Posted on 2006-05-14 by Ravi Raja (No Solution Yet, 6 Comments)
![Difficulty: 4 of 5 Difficulty: 4 of 5](http://perplexus.info/images/perplexus/diff/4.gif)
Posted on 2006-05-12 by Ravi Raja (No Solution Yet, 8 Comments)
![Difficulty: 4 of 5 Difficulty: 4 of 5](http://perplexus.info/images/perplexus/diff/4.gif)
Posted on 2006-05-07 by Ravi Raja (No Solution Yet, 6 Comments)
![Difficulty: 2 of 5 Difficulty: 2 of 5](http://perplexus.info/images/perplexus/diff/2.gif)
Posted on 2006-05-02 by Ravi Raja (No Solution Yet, 5 Comments)
![Difficulty: 3 of 5 Difficulty: 3 of 5](http://perplexus.info/images/perplexus/diff/3.gif)
Posted on 2006-03-23 by Ravi Raja (No Solution Yet, 6 Comments)
![Difficulty: 3 of 5 Difficulty: 3 of 5](http://perplexus.info/images/perplexus/diff/3.gif)
Posted on 2006-03-20 by Ravi Raja (No Solution Yet, 7 Comments)
![Difficulty: 3 of 5 Difficulty: 3 of 5](http://perplexus.info/images/perplexus/diff/3.gif)
Posted on 2006-03-18 by Ravi Raja (No Solution Yet, 7 Comments)
![Difficulty: 2 of 5 Difficulty: 2 of 5](http://perplexus.info/images/perplexus/diff/2.gif)
Posted on 2006-03-14 by Ravi Raja (No Solution Yet, 14 Comments)
![Difficulty: 4 of 5 Difficulty: 4 of 5](http://perplexus.info/images/perplexus/diff/4.gif)
Posted on 2006-03-11 by Ravi Raja (No Solution Yet, 13 Comments)
![Difficulty: 4 of 5 Difficulty: 4 of 5](http://perplexus.info/images/perplexus/diff/4.gif)
Posted on 2004-02-14 by Ravi Raja (Solution Posted, 12 Comments)
![Difficulty: 2 of 5 Difficulty: 2 of 5](http://perplexus.info/images/perplexus/diff/2.gif)
Posted on 2004-02-11 by Ravi Raja (Solution Posted, 5 Comments)
![Difficulty: 3 of 5 Difficulty: 3 of 5](http://perplexus.info/images/perplexus/diff/3.gif)
Posted on 2004-02-07 by Ravi Raja (Solution Posted, 10 Comments)
![Difficulty: 2 of 5 Difficulty: 2 of 5](http://perplexus.info/images/perplexus/diff/2.gif)
Posted on 2004-02-05 by Ravi Raja (Solution Posted, 16 Comments)
![Difficulty: 1 of 5 Difficulty: 1 of 5](http://perplexus.info/images/perplexus/diff/1.gif)
Posted on 2004-02-04 by Ravi Raja (Solution Posted, 15 Comments)
![Difficulty: 2 of 5 Difficulty: 2 of 5](http://perplexus.info/images/perplexus/diff/2.gif)
Posted on 2004-01-31 by Ravi Raja (No Solution Yet, 17 Comments)
![Difficulty: 3 of 5 Difficulty: 3 of 5](http://perplexus.info/images/perplexus/diff/3.gif)
Posted on 2004-01-27 by Ravi Raja (Solution Posted, 14 Comments)
![Difficulty: 3 of 5 Difficulty: 3 of 5](http://perplexus.info/images/perplexus/diff/3.gif)
Posted on 2004-01-25 by Ravi Raja (Solution Posted, 24 Comments)
![Difficulty: 3 of 5 Difficulty: 3 of 5](http://perplexus.info/images/perplexus/diff/3.gif)
Posted on 2004-01-23 by Ravi Raja (Solution Posted, 21 Comments)
![Difficulty: 2 of 5 Difficulty: 2 of 5](http://perplexus.info/images/perplexus/diff/2.gif)
Posted on 2004-01-21 by Ravi Raja (Solution Posted, 22 Comments)
![Difficulty: 3 of 5 Difficulty: 3 of 5](http://perplexus.info/images/perplexus/diff/3.gif)
Posted on 2004-01-19 by Ravi Raja (Solution Posted, 21 Comments)
![Difficulty: 3 of 5 Difficulty: 3 of 5](http://perplexus.info/images/perplexus/diff/3.gif)
Posted on 2004-01-16 by Ravi Raja (Solution Posted, 3 Comments)
![Difficulty: 3 of 5 Difficulty: 3 of 5](http://perplexus.info/images/perplexus/diff/3.gif)
Posted on 2004-01-14 by Ravi Raja (No Solution Yet, 21 Comments)
![Difficulty: 2 of 5 Difficulty: 2 of 5](http://perplexus.info/images/perplexus/diff/2.gif)
Posted on 2004-01-12 by Ravi Raja (Solution Posted, 9 Comments)
![Difficulty: 3 of 5 Difficulty: 3 of 5](http://perplexus.info/images/perplexus/diff/3.gif)
Posted on 2004-01-06 by Ravi Raja (Solution Posted, 11 Comments)
![Difficulty: 3 of 5 Difficulty: 3 of 5](http://perplexus.info/images/perplexus/diff/3.gif)
Posted on 2004-01-02 by Ravi Raja (Solution Posted, 7 Comments)
![Difficulty: 3 of 5 Difficulty: 3 of 5](http://perplexus.info/images/perplexus/diff/3.gif)
Posted on 2003-12-31 by Ravi Raja (Solution Posted, 11 Comments)
![Difficulty: 3 of 5 Difficulty: 3 of 5](http://perplexus.info/images/perplexus/diff/3.gif)
Posted on 2003-12-28 by Ravi Raja (Solution Posted, 15 Comments)
![Difficulty: 3 of 5 Difficulty: 3 of 5](http://perplexus.info/images/perplexus/diff/3.gif)
Posted on 2003-12-26 by Ravi Raja (Solution Posted, 11 Comments)
![Difficulty: 4 of 5 Difficulty: 4 of 5](http://perplexus.info/images/perplexus/diff/4.gif)
Posted on 2003-12-21 by Ravi Raja (Solution Posted, 12 Comments)
![Difficulty: 3 of 5 Difficulty: 3 of 5](http://perplexus.info/images/perplexus/diff/3.gif)
Posted on 2003-12-18 by Ravi Raja (No Solution Yet, 21 Comments)
![Difficulty: 2 of 5 Difficulty: 2 of 5](http://perplexus.info/images/perplexus/diff/2.gif)
Posted on 2003-12-06 by Ravi Raja (Solution Posted, 21 Comments)
![Difficulty: 2 of 5 Difficulty: 2 of 5](http://perplexus.info/images/perplexus/diff/2.gif)
Posted on 2003-12-02 by Ravi Raja (No Solution Yet, 15 Comments)
![Difficulty: 3 of 5 Difficulty: 3 of 5](http://perplexus.info/images/perplexus/diff/3.gif)
Posted on 2003-11-25 by Ravi Raja (Solution Posted, 21 Comments)
![Difficulty: 3 of 5 Difficulty: 3 of 5](http://perplexus.info/images/perplexus/diff/3.gif)
Posted on 2003-11-23 by Ravi Raja (No Solution Yet, 15 Comments)
![Difficulty: 2 of 5 Difficulty: 2 of 5](http://perplexus.info/images/perplexus/diff/2.gif)
Posted on 2003-11-19 by Ravi Raja (Solution Posted, 8 Comments)
![Difficulty: 3 of 5 Difficulty: 3 of 5](http://perplexus.info/images/perplexus/diff/3.gif)
Posted on 2003-11-17 by Ravi Raja (No Solution Yet, 22 Comments)
![Difficulty: 3 of 5 Difficulty: 3 of 5](http://perplexus.info/images/perplexus/diff/3.gif)
Posted on 2003-11-15 by Ravi Raja (Solution Posted, 43 Comments)
![Difficulty: 4 of 5 Difficulty: 4 of 5](http://perplexus.info/images/perplexus/diff/4.gif)
Posted on 2003-11-13 by Ravi Raja (Solution Posted, 14 Comments)
![Difficulty: 3 of 5 Difficulty: 3 of 5](http://perplexus.info/images/perplexus/diff/3.gif)
Posted on 2003-11-09 by Ravi Raja (Solution Posted, 12 Comments)
![Difficulty: 3 of 5 Difficulty: 3 of 5](http://perplexus.info/images/perplexus/diff/3.gif)
Posted on 2003-11-05 by Ravi Raja (Solution Posted, 21 Comments)
![Difficulty: 3 of 5 Difficulty: 3 of 5](http://perplexus.info/images/perplexus/diff/3.gif)
Posted on 2003-11-03 by Ravi Raja (Solution Posted, 25 Comments)
![Difficulty: 3 of 5 Difficulty: 3 of 5](http://perplexus.info/images/perplexus/diff/3.gif)
Posted on 2003-10-31 by Ravi Raja (Solution Posted, 9 Comments)
![Difficulty: 4 of 5 Difficulty: 4 of 5](http://perplexus.info/images/perplexus/diff/4.gif)
Posted on 2003-10-29 by Ravi Raja (Solution Posted, 15 Comments)
![Difficulty: 3 of 5 Difficulty: 3 of 5](http://perplexus.info/images/perplexus/diff/3.gif)
Posted on 2003-10-27 by Ravi Raja (Solution Posted, 15 Comments)
![Difficulty: 3 of 5 Difficulty: 3 of 5](http://perplexus.info/images/perplexus/diff/3.gif)
Posted on 2003-10-23 by Ravi Raja (Solution Posted, 12 Comments)
![Difficulty: 3 of 5 Difficulty: 3 of 5](http://perplexus.info/images/perplexus/diff/3.gif)
Posted on 2003-10-21 by Ravi Raja (Solution Posted, 14 Comments)
![Difficulty: 3 of 5 Difficulty: 3 of 5](http://perplexus.info/images/perplexus/diff/3.gif)
Posted on 2003-10-16 by Ravi Raja (Solution Posted, 10 Comments)
![Difficulty: 3 of 5 Difficulty: 3 of 5](http://perplexus.info/images/perplexus/diff/3.gif)
Posted on 2003-10-14 by Ravi Raja (Solution Posted, 19 Comments)
![Difficulty: 3 of 5 Difficulty: 3 of 5](http://perplexus.info/images/perplexus/diff/3.gif)
Posted on 2003-10-13 by Ravi Raja (Solution Posted, 23 Comments)
![Difficulty: 4 of 5 Difficulty: 4 of 5](http://perplexus.info/images/perplexus/diff/4.gif)
Posted on 2003-10-11 by Ravi Raja (Solution Posted, 7 Comments)
![Difficulty: 4 of 5 Difficulty: 4 of 5](http://perplexus.info/images/perplexus/diff/4.gif)
Posted on 2003-10-08 by Ravi Raja (Solution Posted, 24 Comments)
![Difficulty: 3 of 5 Difficulty: 3 of 5](http://perplexus.info/images/perplexus/diff/3.gif)
Posted on 2003-10-06 by Ravi Raja (Solution Posted, 12 Comments)
![Difficulty: 3 of 5 Difficulty: 3 of 5](http://perplexus.info/images/perplexus/diff/3.gif)
Posted on 2003-10-03 by Ravi Raja (Solution Posted, 35 Comments)
![Difficulty: 3 of 5 Difficulty: 3 of 5](http://perplexus.info/images/perplexus/diff/3.gif)
Posted on 2003-09-24 by Ravi Raja (Solution Posted, 7 Comments)
![Difficulty: 2 of 5 Difficulty: 2 of 5](http://perplexus.info/images/perplexus/diff/2.gif)
Posted on 2003-09-23 by Ravi Raja (Solution Posted, 10 Comments)
![Difficulty: 3 of 5 Difficulty: 3 of 5](http://perplexus.info/images/perplexus/diff/3.gif)
Posted on 2003-09-15 by Ravi Raja (Solution Posted, 9 Comments)
![Difficulty: 3 of 5 Difficulty: 3 of 5](http://perplexus.info/images/perplexus/diff/3.gif)
Posted on 2003-09-13 by Ravi Raja (Solution Posted, 19 Comments)
![Difficulty: 3 of 5 Difficulty: 3 of 5](http://perplexus.info/images/perplexus/diff/3.gif)
Posted on 2003-09-02 by Ravi Raja (Solution Posted, 14 Comments)
![Difficulty: 2 of 5 Difficulty: 2 of 5](http://perplexus.info/images/perplexus/diff/2.gif)
Posted on 2003-08-30 by Ravi Raja (Solution Posted, 9 Comments)
![Difficulty: 3 of 5 Difficulty: 3 of 5](http://perplexus.info/images/perplexus/diff/3.gif)
Posted on 2003-08-29 by Ravi Raja (Solution Posted, 10 Comments)
![Difficulty: 3 of 5 Difficulty: 3 of 5](http://perplexus.info/images/perplexus/diff/3.gif)
Posted on 2003-08-27 by Ravi Raja (Solution Posted, 13 Comments)
![Difficulty: 3 of 5 Difficulty: 3 of 5](http://perplexus.info/images/perplexus/diff/3.gif)
Posted on 2003-08-25 by Ravi Raja (Solution Posted, 26 Comments)
![Difficulty: 3 of 5 Difficulty: 3 of 5](http://perplexus.info/images/perplexus/diff/3.gif)
Posted on 2003-08-22 by Ravi Raja (Solution Posted, 10 Comments)
![Difficulty: 3 of 5 Difficulty: 3 of 5](http://perplexus.info/images/perplexus/diff/3.gif)
Posted on 2003-08-20 by Ravi Raja (Solution Posted, 17 Comments)
![Difficulty: 3 of 5 Difficulty: 3 of 5](http://perplexus.info/images/perplexus/diff/3.gif)
Posted on 2003-08-18 by Ravi Raja (Solution Posted, 15 Comments)
![Difficulty: 3 of 5 Difficulty: 3 of 5](http://perplexus.info/images/perplexus/diff/3.gif)
Posted on 2003-08-14 by Ravi Raja (Solution Posted, 12 Comments)
![Difficulty: 1 of 5 Difficulty: 1 of 5](http://perplexus.info/images/perplexus/diff/1.gif)
Posted on 2003-08-08 by Ravi Raja (Solution Posted, 13 Comments)
![Difficulty: 1 of 5 Difficulty: 1 of 5](http://perplexus.info/images/perplexus/diff/1.gif)
Posted on 2003-08-07 by Ravi Raja (Solution Posted, 14 Comments)
![Difficulty: 3 of 5 Difficulty: 3 of 5](http://perplexus.info/images/perplexus/diff/3.gif)
Posted on 2003-08-03 by Ravi Raja (Solution Posted, 14 Comments)
![Difficulty: 3 of 5 Difficulty: 3 of 5](http://perplexus.info/images/perplexus/diff/3.gif)
Posted on 2003-07-31 by Ravi Raja (Solution Posted, 15 Comments)
![Difficulty: 3 of 5 Difficulty: 3 of 5](http://perplexus.info/images/perplexus/diff/3.gif)
Posted on 2003-07-31 by Ravi Raja (Solution Posted, 12 Comments)
![Difficulty: 3 of 5 Difficulty: 3 of 5](http://perplexus.info/images/perplexus/diff/3.gif)
Posted on 2003-07-27 by Ravi Raja (Solution Posted, 15 Comments)
![Difficulty: 3 of 5 Difficulty: 3 of 5](http://perplexus.info/images/perplexus/diff/3.gif)
Posted on 2003-07-24 by Ravi Raja (Solution Posted, 12 Comments)
![Difficulty: 3 of 5 Difficulty: 3 of 5](http://perplexus.info/images/perplexus/diff/3.gif)
Posted on 2003-07-21 by Ravi Raja (Solution Posted, 24 Comments)
![Difficulty: 4 of 5 Difficulty: 4 of 5](http://perplexus.info/images/perplexus/diff/4.gif)
Posted on 2003-07-19 by Ravi Raja (Solution Posted, 17 Comments)
![Difficulty: 4 of 5 Difficulty: 4 of 5](http://perplexus.info/images/perplexus/diff/4.gif)
Posted on 2003-07-18 by Ravi Raja (Solution Posted, 19 Comments)
![Difficulty: 2 of 5 Difficulty: 2 of 5](http://perplexus.info/images/perplexus/diff/2.gif)
Posted on 2003-07-16 by Ravi Raja (Solution Posted, 14 Comments)
![Difficulty: 3 of 5 Difficulty: 3 of 5](http://perplexus.info/images/perplexus/diff/3.gif)
Posted on 2003-07-09 by Ravi Raja (Solution Posted, 21 Comments)
![Difficulty: 3 of 5 Difficulty: 3 of 5](http://perplexus.info/images/perplexus/diff/3.gif)
Posted on 2003-07-05 by Ravi Raja (Solution Posted, 10 Comments)
![Difficulty: 4 of 5 Difficulty: 4 of 5](http://perplexus.info/images/perplexus/diff/4.gif)
Posted on 2003-06-27 by Ravi Raja (Solution Posted, 12 Comments)
![Difficulty: 1 of 5 Difficulty: 1 of 5](http://perplexus.info/images/perplexus/diff/1.gif)
Posted on 2003-06-18 by Ravi Raja (Solution Posted, 31 Comments)
![Difficulty: 3 of 5 Difficulty: 3 of 5](http://perplexus.info/images/perplexus/diff/3.gif)
Posted on 2003-06-17 by Ravi Raja (Solution Posted, 42 Comments)
![Difficulty: 3 of 5 Difficulty: 3 of 5](http://perplexus.info/images/perplexus/diff/3.gif)
Posted on 2003-06-13 by Ravi Raja (Solution Posted, 28 Comments)
![Difficulty: 3 of 5 Difficulty: 3 of 5](http://perplexus.info/images/perplexus/diff/3.gif)
Posted on 2003-06-10 by Ravi Raja (Solution Posted, 19 Comments)
![Difficulty: 2 of 5 Difficulty: 2 of 5](http://perplexus.info/images/perplexus/diff/2.gif)
Posted on 2003-06-06 by Ravi Raja (Solution Posted, 30 Comments)
![Difficulty: 2 of 5 Difficulty: 2 of 5](http://perplexus.info/images/perplexus/diff/2.gif)
Posted on 2003-06-02 by Ravi Raja (Solution Posted, 26 Comments)
![Difficulty: 3 of 5 Difficulty: 3 of 5](http://perplexus.info/images/perplexus/diff/3.gif)
Posted on 2003-05-31 by Ravi Raja (Solution Posted, 15 Comments)
![Difficulty: 3 of 5 Difficulty: 3 of 5](http://perplexus.info/images/perplexus/diff/3.gif)
Posted on 2003-05-30 by Ravi Raja (Solution Posted, 12 Comments)
![Difficulty: 3 of 5 Difficulty: 3 of 5](http://perplexus.info/images/perplexus/diff/3.gif)
Posted on 2003-05-29 by Ravi Raja (Solution Posted, 10 Comments)
![Difficulty: 2 of 5 Difficulty: 2 of 5](http://perplexus.info/images/perplexus/diff/2.gif)
Posted on 2003-05-28 by Ravi Raja (Solution Posted, 41 Comments)
![Difficulty: 3 of 5 Difficulty: 3 of 5](http://perplexus.info/images/perplexus/diff/3.gif)
Posted on 2003-05-27 by Ravi Raja (Solution Posted, 4 Comments)
![Difficulty: 3 of 5 Difficulty: 3 of 5](http://perplexus.info/images/perplexus/diff/3.gif)
Posted on 2003-05-24 by Ravi Raja (Solution Posted, 13 Comments)
![Difficulty: 2 of 5 Difficulty: 2 of 5](http://perplexus.info/images/perplexus/diff/2.gif)
Posted on 2003-05-22 by Ravi Raja (Solution Posted, 29 Comments)
![Difficulty: 3 of 5 Difficulty: 3 of 5](http://perplexus.info/images/perplexus/diff/3.gif)
Posted on 2003-05-20 by Ravi Raja (Solution Posted, 6 Comments)
![Difficulty: 2 of 5 Difficulty: 2 of 5](http://perplexus.info/images/perplexus/diff/2.gif)
Posted on 2003-05-19 by Ravi Raja (Solution Posted, 43 Comments)
![Difficulty: 2 of 5 Difficulty: 2 of 5](http://perplexus.info/images/perplexus/diff/2.gif)
Posted on 2003-05-17 by Ravi Raja (Solution Posted, 9 Comments)
![Difficulty: 2 of 5 Difficulty: 2 of 5](http://perplexus.info/images/perplexus/diff/2.gif)
Posted on 2003-05-16 by Ravi Raja (Solution Posted, 31 Comments)
![Difficulty: 4 of 5 Difficulty: 4 of 5](http://perplexus.info/images/perplexus/diff/4.gif)
Posted on 2003-05-15 by Ravi Raja (Solution Posted, 28 Comments)
![Difficulty: 2 of 5 Difficulty: 2 of 5](http://perplexus.info/images/perplexus/diff/2.gif)
Posted on 2003-05-14 by Ravi Raja (Solution Posted, 30 Comments)
![Difficulty: 3 of 5 Difficulty: 3 of 5](http://perplexus.info/images/perplexus/diff/3.gif)
Posted on 2003-05-12 by Ravi Raja (Solution Posted, 5 Comments)
![Difficulty: 3 of 5 Difficulty: 3 of 5](http://perplexus.info/images/perplexus/diff/3.gif)
Posted on 2003-05-10 by Ravi Raja (Solution Posted, 18 Comments)
![Difficulty: 4 of 5 Difficulty: 4 of 5](http://perplexus.info/images/perplexus/diff/4.gif)
Posted on 2003-05-08 by Ravi Raja (Solution Posted, 13 Comments)
![Difficulty: 2 of 5 Difficulty: 2 of 5](http://perplexus.info/images/perplexus/diff/2.gif)
Posted on 2003-05-07 by Ravi Raja (Solution Posted, 45 Comments)
![Difficulty: 3 of 5 Difficulty: 3 of 5](http://perplexus.info/images/perplexus/diff/3.gif)
Posted on 2003-05-03 by Ravi Raja (Solution Posted, 11 Comments)
![Difficulty: 3 of 5 Difficulty: 3 of 5](http://perplexus.info/images/perplexus/diff/3.gif)
Posted on 2003-05-01 by Ravi Raja (Solution Posted, 16 Comments)
![Difficulty: 3 of 5 Difficulty: 3 of 5](http://perplexus.info/images/perplexus/diff/3.gif)
Posted on 2003-04-30 by Ravi Raja (Solution Posted, 110 Comments)
![Difficulty: 3 of 5 Difficulty: 3 of 5](http://perplexus.info/images/perplexus/diff/3.gif)
Posted on 2003-04-29 by Ravi Raja (Solution Posted, 27 Comments)
![Difficulty: 4 of 5 Difficulty: 4 of 5](http://perplexus.info/images/perplexus/diff/4.gif)
Posted on 2003-04-28 by Ravi Raja (Solution Posted, 14 Comments)
![Difficulty: 4 of 5 Difficulty: 4 of 5](http://perplexus.info/images/perplexus/diff/4.gif)
Posted on 2003-04-26 by Ravi Raja (Solution Posted, 15 Comments)
![Difficulty: 4 of 5 Difficulty: 4 of 5](http://perplexus.info/images/perplexus/diff/4.gif)
Posted on 2003-04-25 by Ravi Raja (Solution Posted, 5 Comments)
![Difficulty: 3 of 5 Difficulty: 3 of 5](http://perplexus.info/images/perplexus/diff/3.gif)
Posted on 2003-04-24 by Ravi Raja (Solution Posted, 45 Comments)
![Difficulty: 2 of 5 Difficulty: 2 of 5](http://perplexus.info/images/perplexus/diff/2.gif)
Posted on 2003-04-23 by Ravi Raja (Solution Posted, 23 Comments)
![Difficulty: 2 of 5 Difficulty: 2 of 5](http://perplexus.info/images/perplexus/diff/2.gif)
Posted on 2003-04-22 by Ravi Raja (Solution Posted, 40 Comments)
![Difficulty: 5 of 5 Difficulty: 5 of 5](http://perplexus.info/images/perplexus/diff/5.gif)
Posted on 2003-04-21 by Ravi Raja (Solution Posted, 10 Comments)
![Difficulty: 2 of 5 Difficulty: 2 of 5](http://perplexus.info/images/perplexus/diff/2.gif)
Posted on 2003-04-20 by Ravi Raja (Solution Posted, 47 Comments)
![Difficulty: 4 of 5 Difficulty: 4 of 5](http://perplexus.info/images/perplexus/diff/4.gif)
Posted on 2003-04-18 by Ravi Raja (Solution Posted, 31 Comments)
![Difficulty: 3 of 5 Difficulty: 3 of 5](http://perplexus.info/images/perplexus/diff/3.gif)
Posted on 2003-04-16 by Ravi Raja (Solution Posted, 8 Comments)
![Difficulty: 4 of 5 Difficulty: 4 of 5](http://perplexus.info/images/perplexus/diff/4.gif)
Posted on 2003-04-14 by Ravi Raja (Solution Posted, 9 Comments)
![Difficulty: 3 of 5 Difficulty: 3 of 5](http://perplexus.info/images/perplexus/diff/3.gif)
Posted on 2003-04-12 by Ravi Raja (Solution Posted, 14 Comments)
![Difficulty: 3 of 5 Difficulty: 3 of 5](http://perplexus.info/images/perplexus/diff/3.gif)
Posted on 2003-04-11 by Ravi Raja (Solution Posted, 7 Comments)
![Difficulty: 4 of 5 Difficulty: 4 of 5](http://perplexus.info/images/perplexus/diff/4.gif)
Posted on 2003-04-09 by Ravi Raja (Solution Posted, 16 Comments)
![Difficulty: 2 of 5 Difficulty: 2 of 5](http://perplexus.info/images/perplexus/diff/2.gif)
Posted on 2003-04-08 by Ravi Raja (Solution Posted, 23 Comments)
![Difficulty: 3 of 5 Difficulty: 3 of 5](http://perplexus.info/images/perplexus/diff/3.gif)
Posted on 2003-04-07 by Ravi Raja (Solution Posted, 21 Comments)
![Difficulty: 5 of 5 Difficulty: 5 of 5](http://perplexus.info/images/perplexus/diff/5.gif)
Posted on 2003-04-05 by Ravi Raja (Solution Posted, 10 Comments)
![Difficulty: 4 of 5 Difficulty: 4 of 5](http://perplexus.info/images/perplexus/diff/4.gif)
Posted on 2003-04-02 by Ravi Raja (Solution Posted, 7 Comments)
![Difficulty: 3 of 5 Difficulty: 3 of 5](http://perplexus.info/images/perplexus/diff/3.gif)
Posted on 2003-03-27 by Ravi Raja (Solution Posted, 7 Comments)
![Difficulty: 3 of 5 Difficulty: 3 of 5](http://perplexus.info/images/perplexus/diff/3.gif)
Posted on 2003-03-26 by Ravi Raja (Solution Posted, 41 Comments)
![Difficulty: 4 of 5 Difficulty: 4 of 5](http://perplexus.info/images/perplexus/diff/4.gif)
Posted on 2003-03-25 by Ravi Raja (Solution Posted, 7 Comments)
![Difficulty: 3 of 5 Difficulty: 3 of 5](http://perplexus.info/images/perplexus/diff/3.gif)
Posted on 2003-03-23 by Ravi Raja (Solution Posted, 7 Comments)
![Difficulty: 3 of 5 Difficulty: 3 of 5](http://perplexus.info/images/perplexus/diff/3.gif)
Posted on 2003-03-21 by Ravi Raja (Solution Posted, 21 Comments)
![Difficulty: 4 of 5 Difficulty: 4 of 5](http://perplexus.info/images/perplexus/diff/4.gif)
Posted on 2003-03-20 by Ravi Raja (Solution Posted, 138 Comments)
![Difficulty: 5 of 5 Difficulty: 5 of 5](http://perplexus.info/images/perplexus/diff/5.gif)
Posted on 2003-03-18 by Ravi Raja (Solution Posted, 47 Comments)
![Difficulty: 3 of 5 Difficulty: 3 of 5](http://perplexus.info/images/perplexus/diff/3.gif)
Posted on 2003-03-16 by Ravi Raja (Solution Posted, 15 Comments)
![Difficulty: 1 of 5 Difficulty: 1 of 5](http://perplexus.info/images/perplexus/diff/1.gif)
Posted on 2003-03-14 by Ravi Raja (Solution Posted, 12 Comments)
![Difficulty: 1 of 5 Difficulty: 1 of 5](http://perplexus.info/images/perplexus/diff/1.gif)
Posted on 2003-03-14 by Ravi Raja (Solution Posted, 13 Comments)
![Difficulty: 2 of 5 Difficulty: 2 of 5](http://perplexus.info/images/perplexus/diff/2.gif)
Posted on 2003-03-12 by Ravi Raja (Solution Posted, 13 Comments)
![Difficulty: 3 of 5 Difficulty: 3 of 5](http://perplexus.info/images/perplexus/diff/3.gif)
Posted on 2003-03-10 by Ravi Raja (Solution Posted, 12 Comments)
![Difficulty: 3 of 5 Difficulty: 3 of 5](http://perplexus.info/images/perplexus/diff/3.gif)
Posted on 2003-03-07 by Ravi Raja (Solution Posted, 10 Comments)
![Difficulty: 2 of 5 Difficulty: 2 of 5](http://perplexus.info/images/perplexus/diff/2.gif)
Posted on 2003-03-06 by Ravi Raja (Solution Posted, 21 Comments)
![Difficulty: 2 of 5 Difficulty: 2 of 5](http://perplexus.info/images/perplexus/diff/2.gif)
Posted on 2003-03-05 by Ravi Raja (Solution Posted, 15 Comments)
![Difficulty: 3 of 5 Difficulty: 3 of 5](http://perplexus.info/images/perplexus/diff/3.gif)
Posted on 2003-03-04 by Ravi Raja (Solution Posted, 15 Comments)
![Difficulty: 2 of 5 Difficulty: 2 of 5](http://perplexus.info/images/perplexus/diff/2.gif)
Posted on 2003-03-03 by Ravi Raja (Solution Posted, 23 Comments)
![Difficulty: 3 of 5 Difficulty: 3 of 5](http://perplexus.info/images/perplexus/diff/3.gif)
Posted on 2003-03-02 by Ravi Raja (Solution Posted, 7 Comments)
![Difficulty: 2 of 5 Difficulty: 2 of 5](http://perplexus.info/images/perplexus/diff/2.gif)
Posted on 2003-02-28 by Ravi Raja (Solution Posted, 16 Comments)
![Difficulty: 1 of 5 Difficulty: 1 of 5](http://perplexus.info/images/perplexus/diff/1.gif)
Posted on 2003-02-27 by Ravi Raja (Solution Posted, 23 Comments)
![Difficulty: 2 of 5 Difficulty: 2 of 5](http://perplexus.info/images/perplexus/diff/2.gif)
Posted on 2003-02-26 by Ravi Raja (Solution Posted, 12 Comments)
![Difficulty: 2 of 5 Difficulty: 2 of 5](http://perplexus.info/images/perplexus/diff/2.gif)
Posted on 2003-02-25 by Ravi Raja (Solution Posted, 25 Comments)
![Difficulty: 3 of 5 Difficulty: 3 of 5](http://perplexus.info/images/perplexus/diff/3.gif)
Posted on 2003-02-25 by Ravi Raja (Solution Posted, 63 Comments)
![Difficulty: 2 of 5 Difficulty: 2 of 5](http://perplexus.info/images/perplexus/diff/2.gif)
Posted on 2003-02-08 by Ravi Raja (Solution Posted, 19 Comments)
![Difficulty: 2 of 5 Difficulty: 2 of 5](http://perplexus.info/images/perplexus/diff/2.gif)
Posted on 2003-02-08 by Ravi Raja (Solution Posted, 11 Comments)
![Difficulty: 3 of 5 Difficulty: 3 of 5](http://perplexus.info/images/perplexus/diff/3.gif)
Posted on 2003-02-06 by Ravi Raja (Solution Posted, 14 Comments)
![Difficulty: 3 of 5 Difficulty: 3 of 5](http://perplexus.info/images/perplexus/diff/3.gif)
Posted on 2003-02-05 by Ravi Raja (Solution Posted, 7 Comments)
![Difficulty: 1 of 5 Difficulty: 1 of 5](http://perplexus.info/images/perplexus/diff/1.gif)
Posted on 2003-02-05 by Ravi Raja (Solution Posted, 19 Comments)
![Difficulty: 2 of 5 Difficulty: 2 of 5](http://perplexus.info/images/perplexus/diff/2.gif)
Posted on 2003-02-04 by Ravi Raja (Solution Posted, 5 Comments)
![Difficulty: 2 of 5 Difficulty: 2 of 5](http://perplexus.info/images/perplexus/diff/2.gif)
Posted on 2003-02-04 by Ravi Raja (Solution Posted, 13 Comments)
![Difficulty: 2 of 5 Difficulty: 2 of 5](http://perplexus.info/images/perplexus/diff/2.gif)
Posted on 2003-02-04 by Ravi Raja (Solution Posted, 14 Comments)
![Difficulty: 2 of 5 Difficulty: 2 of 5](http://perplexus.info/images/perplexus/diff/2.gif)
Posted on 2003-02-03 by Ravi Raja (Solution Posted, 12 Comments)
![Difficulty: 3 of 5 Difficulty: 3 of 5](http://perplexus.info/images/perplexus/diff/3.gif)
Posted on 2003-02-01 by Ravi Raja (Solution Posted, 10 Comments)
![Difficulty: 2 of 5 Difficulty: 2 of 5](http://perplexus.info/images/perplexus/diff/2.gif)
Posted on 2003-02-01 by Ravi Raja (Solution Posted, 17 Comments)
![Difficulty: 3 of 5 Difficulty: 3 of 5](http://perplexus.info/images/perplexus/diff/3.gif)
Posted on 2003-02-01 by Ravi Raja (Solution Posted, 8 Comments)
![Difficulty: 2 of 5 Difficulty: 2 of 5](http://perplexus.info/images/perplexus/diff/2.gif)
Posted on 2003-01-31 by Ravi Raja (Solution Posted, 9 Comments)
![Difficulty: 3 of 5 Difficulty: 3 of 5](http://perplexus.info/images/perplexus/diff/3.gif)
Posted on 2003-01-30 by Ravi Raja (Solution Posted, 15 Comments)
![Difficulty: 3 of 5 Difficulty: 3 of 5](http://perplexus.info/images/perplexus/diff/3.gif)
Posted on 2003-01-29 by Ravi Raja (Solution Posted, 20 Comments)
![Difficulty: 3 of 5 Difficulty: 3 of 5](http://perplexus.info/images/perplexus/diff/3.gif)
Posted on 2003-01-28 by Ravi Raja (Solution Posted, 15 Comments)
![Difficulty: 4 of 5 Difficulty: 4 of 5](http://perplexus.info/images/perplexus/diff/4.gif)
Posted on 2003-01-27 by Ravi Raja (Solution Posted, 7 Comments)
![Difficulty: 4 of 5 Difficulty: 4 of 5](http://perplexus.info/images/perplexus/diff/4.gif)
Posted on 2003-01-22 by Ravi Raja (Solution Posted, 14 Comments)
![Difficulty: 2 of 5 Difficulty: 2 of 5](http://perplexus.info/images/perplexus/diff/2.gif)
Posted on 2003-01-13 by Ravi Raja (Solution Posted, 19 Comments)