C(29,10,2) = 12

Method of Construction: lexicographic greedy covering

Lower Bound: Schonheim

  1  2  3  4  5  6  7  8  9 10
  1 11 12 13 14 15 16 17 18 19
  1 20 21 22 23 24 25 26 27 28
  2  3  4 11 12 13 20 21 22 29
  5  6  7 14 15 16 23 24 25 29
  8  9 10 17 18 19 26 27 28 29
  2  3  4  5 14 15 16 26 27 28
  2  3  4  5 17 18 19 23 24 25
  5  8  9 10 11 12 13 23 24 25
  5  8  9 10 14 15 16 20 21 22
  6  7 11 12 13 17 20 26 27 28
  1  6  7 17 18 19 20 21 22 29