| 
  |  | Number of Real Solutions |  | Necklaces | 0 | 2 | 
|---|
 | aabb | 0 | 1000 | 
|---|
 | abab | 0 | 1000 | 
|---|
 |  | 
  | Projections |  | 
   | Variety | Problem | # |  
    | Fl(2;5) | (X  )2(X  )2 | 2 |  
    | Fl(3;5) | (Y  )2(Y  )2 | 2 |  |  
  | Problems fibred over
 (X  )2(Y  )2 |  | 
   | Variety | Problem | # |  
    | Fl(1,2,3;5) | W  (X  )2(Y  )2 | 2 |  
    | Fl(2,3,4;5) | (X  )2(Y  )2Z   | 2 |  
    | Fl(1,2,3,4;5) | W  (X  )2(Y  )2Z   | 2 |  
    | Fl(1,2,3,4;5) | W  X  Y  Z   | 2 |  |  |