idnr: 819
  4 2  
       
       
  2 1  
Difficulty: Very easy (0)
idnr: 150
3 4    
       
       
    1 2
Difficulty: Super easy (0)
idnr: 519
  1 3  
       
       
  3 2  
Difficulty: Very easy (0)
idnr: 461
4     2
       
       
1     3
Difficulty: Super easy (0)