C(71,22,2) = 14

Created by: Jan de Heer and Steve Muir

Method of Construction: Private tools

Lower Bound: Bounds for fixed number of blocks

  1  2  6 17 20 22 24 25 28 40 42 43 45 46 47 50 52 55 57 62 64 68
  1  3  5  7 11 15 17 18 22 23 27 33 37 40 44 45 49 55 59 61 62 66
  1  4 10 17 19 22 26 29 30 31 32 34 40 45 48 53 54 55 62 67 68 70
  1  4 12 16 17 21 22 26 29 34 36 38 40 41 45 48 51 56 62 63 65 67
  1  8  9 10 13 14 17 19 22 31 32 35 39 40 45 53 54 58 60 62 69 71
  2  3  5  7  8  9 12 13 16 24 27 30 35 36 38 43 46 49 52 55 56 71
  2  4 14 18 23 24 26 29 34 39 43 44 46 48 52 58 60 61 66 67 69 70
  2 10 11 15 19 21 24 30 31 32 33 37 41 43 46 51 52 53 54 59 63 65
  3  4  5  7 10 19 20 25 26 27 29 31 32 34 42 47 48 49 53 54 64 67
  3  5  6  7 14 21 27 28 39 41 49 50 51 55 57 58 60 63 65 68 69 70
  4  6  8  9 11 13 15 26 28 29 30 33 34 35 37 48 50 57 59 67 68 71
  6 10 12 14 16 18 19 23 28 31 32 36 38 44 50 53 54 56 57 61 66 68
  8  9 13 18 20 21 23 25 30 35 41 42 44 47 51 61 63 64 65 66 70 71
 11 12 14 15 16 20 25 30 33 36 37 38 39 42 47 56 58 59 60 64 69 70