In the following grid, the numbers from 1 to 6 occur only once per row, per column, or per colored rectangle. Given the relations between numbers and a single number to get you started, can you complete the grid?
             
  >   >     <   <    
 v   ^   v   ^   ^   ^   
  <   >     >   <    
             
  <   >     <   >  3   
 v   v   ^   ^   v   ^   
  >   <     >   <    
             
  <   <     <   >    
 ^   v   ^   v   v   ^   
  >   <     <   >    
             
(In reply to
Solution by K Sengupta)
The first three numbers in the first row are obviously wrong...

Posted by e.g.
on 20070715 15:26:58 