C(14,8,2) = 5

Method of Construction: lex covering

 1  2  3  4  5  6  7  8 
 1  2  7  8  9 10 11 12 
 1  2  9 10 11 12 13 14 
 3  4  5  6  7  8 13 14 
 3  4  5  6  9 10 11 12