Magic Ball (Soccer Ball)          Torsten Sillke, 1999-02-13
 Brevettato in tutto il Mondo, 1990
 Coffee Break (R) by Francesco Gorio (C) S. A. R. A. Brescia Italy

 A tiling game with 20 regular hexagons and 12 regular pentagons.

 Pieces:   +-1-+                +                +
          0     0              0 0              1 1
    10*  +       +        3*  +   +        3*  +   +
          1     1             1   1            0   0
           +-1-+              +-1-+            +-1-+

           +-0-+                +                +
          1     1              1 1              0 0
    10*  +       +        3*  +   +        3*  +   +
          0     0             0   0            1   1
           +-0-+              +-0-+            +-0-+

 Note that the lables of all pieces are symmetric.
 A pentagon cannot have asymmetric numbering with two numbers.

 Matching condition: different numbers match

 A symmetric solution:

                                                                 
                  *-------*-------*-------*                      
                 /    1   |   0   |   1    \                     
                /0       0|1     1|0       0\                    
               /          |       |          \                   
              *           *       *           *                  
              |          / \     / \          |                  
              |1       0/1 0\1 0/1 1\0       1|                  
              |   0    /     \ /     \    0   |                  
              *-------*       X       *-------*                  
              |   1   |       |       |   1   |                  
              |0     1|0     0|1     0|1     0|                  
              |       |       |       |       |                  
              *       *       *       *       *                  
             / \     / \     / \     / \     / \                 
            /1 0\1 0/1 0\1 0/1 1\0 1/0 1\0 1/0 1\                
           /     \ /     \ /     \ /     \ /     \               
          *       *       *       *       *       *                
          |       |       |       |       |       |              
          |0     1|0     1|0     0|1     0|1     0|              
          |       |       |   0   |       |       |              
          *       *       *-------*       *       *              
           \     / \     /    1    \     / \     /               
            \1 1/0 1\0 0/1         1\0 0/1 0\1 1/                
             \ /     \ /             \ /     \ /                 
              *       *               *       *                  
               \       \             /       /                   
                \      1\0         0/1      /                    
                 \0      \    1    /      0/                     
                  \       *-------*       /                      
                   \     /    0    \     /                       
                    \  1/0         0\1  /                        
                     \ /             \ /                         
                      *               *                          
                       \             /                           
                        \1         1/                            
                         \    0    /                             
                          *-------*                              
                                                                 
 One halve of a solution with an alternating boarder.
 This halve has an almost left-right symmetry of the lables.
 The only exception are the edges meeting at point 'X'.
 This defect of symmetry cannot avoided.

 You get the other halve by interchanging 0 and 1.