mavend/octoboard

[
  [0, 1, 2, 3, 4, 5, 6, 7, 8],
  [0, 9, 10, 11, 12, 13, 14, 15, 16],
  [0, 17, 18, 19, 20, 21, 22, 23, 24],
  [0, 25, 26, 27, 28, 29, 30, 31, 32],
  [0, 33, 34, 35, 36, 37, 38, 39, 40],
  [0, 41, 42, 43, 44, 45, 46, 47, 48],
  [0, 49, 50, 51, 52, 53, 54, 55, 56],
  [0, 57, 58, 59, 60, 61, 62, 63, 64],
  [0, 65, 66, 67, 68, 69, 70, 71, 72],
  [1, 9, 17, 25, 33, 41, 49, 57, 65],
  [1, 10, 18, 26, 34, 42, 50, 58, 66],
  [1, 11, 19, 27, 35, 43, 51, 59, 67],
  [1, 12, 20, 28, 36, 44, 52, 60, 68],
  [1, 13, 21, 29, 37, 45, 53, 61, 69],
  [1, 14, 22, 30, 38, 46, 54, 62, 70],
  [1, 15, 23, 31, 39, 47, 55, 63, 71],
  [1, 16, 24, 32, 40, 48, 56, 64, 72],
  [2, 9, 18, 27, 36, 45, 54, 63, 72],
  [2, 10, 17, 28, 35, 46, 53, 64, 71],
  [2, 11, 20, 25, 34, 47, 56, 61, 70],
  [2, 12, 19, 26, 33, 48, 55, 62, 69],
  [2, 13, 22, 31, 40, 41, 50, 59, 68],
  [2, 14, 21, 32, 39, 42, 49, 60, 67],
  [2, 15, 24, 29, 38, 43, 52, 57, 66],
  [2, 16, 23, 30, 37, 44, 51, 58, 65],
  [3, 9, 19, 29, 39, 46, 56, 58, 68],
  [3, 10, 20, 30, 40, 45, 55, 57, 67],
  [3, 11, 17, 31, 37, 48, 54, 60, 66],
  [3, 12, 18, 32, 38, 47, 53, 59, 65],
  [3, 13, 23, 25, 35, 42, 52, 62, 72],
  [3, 14, 24, 26, 36, 41, 51, 61, 71],
  [3, 15, 21, 27, 33, 44, 50, 64, 70],
  [3, 16, 22, 28, 34, 43, 49, 63, 69],
  [4, 9, 20, 31, 38, 42, 51, 64, 69],
  [4, 10, 19, 32, 37, 41, 52, 63, 70],
  [4, 11, 18, 29, 40, 44, 49, 62, 71],
  [4, 12, 17, 30, 39, 43, 50, 61, 72],
  [4, 13, 24, 27, 34, 46, 55, 60, 65],
  [4, 14, 23, 28, 33, 45, 56, 59, 66],
  [4, 15, 22, 25, 36, 48, 53, 58, 67],
  [4, 16, 21, 26, 35, 47, 54, 57, 68],
  [5, 9, 21, 30, 34, 48, 52, 59, 71],
  [5, 10, 22, 29, 33, 47, 51, 60, 72],
  [5, 11, 23, 32, 36, 46, 50, 57, 69],
  [5, 12, 24, 31, 35, 45, 49, 58, 70],
  [5, 13, 17, 26, 38, 44, 56, 63, 67],
  [5, 14, 18, 25, 37, 43, 55, 64, 68],
  [5, 15, 19, 28, 40, 42, 54, 61, 65],
  [5, 16, 20, 27, 39, 41, 53, 62, 66],
  [6, 9, 22, 32, 35, 44, 55, 61, 66],
  [6, 10, 21, 31, 36, 43, 56, 62, 65],
  [6, 11, 24, 30, 33, 42, 53, 63, 68],
  [6, 12, 23, 29, 34, 41, 54, 64, 67],
  [6, 13, 18, 28, 39, 48, 51, 57, 70],
  [6, 14, 17, 27, 40, 47, 52, 58, 69],
  [6, 15, 20, 26, 37, 46, 49, 59, 72],
  [6, 16, 19, 25, 38, 45, 50, 60, 71],
  [7, 9, 23, 26, 40, 43, 53, 60, 70],
  [7, 10, 24, 25, 39, 44, 54, 59, 69],
  [7, 11, 21, 28, 38, 41, 55, 58, 72],
  [7, 12, 22, 27, 37, 42, 56, 57, 71],
  [7, 13, 19, 30, 36, 47, 49, 64, 66],
  [7, 14, 20, 29, 35, 48, 50, 63, 65],
  [7, 15, 17, 32, 34, 45, 51, 62, 68],
  [7, 16, 18, 31, 33, 46, 52, 61, 67],
  [8, 9, 24, 28, 37, 47, 50, 62, 67],
  [8, 10, 23, 27, 38, 48, 49, 61, 68],
  [8, 11, 22, 26, 39, 45, 52, 64, 65],
  [8, 12, 21, 25, 40, 46, 51, 63, 66],
  [8, 13, 20, 32, 33, 43, 54, 58, 71],
  [8, 14, 19, 31, 34, 44, 53, 57, 72],
  [8, 15, 18, 30, 35, 41, 56, 60, 69],
  [8, 16, 17, 29, 36, 42, 55, 59, 70]
]