n: 40 m: 475 packed: 13 density: 0 nodes: 0 solveTime: 26320 buildTime: 130 solved: true
{0,29,30}
{1,13,31}
{2,8,9}
{3,4,20}
{5,27,38}
{6,11,17}
{7,18,19}
{10,12,33}
{14,32,35}
{15,22,25}
{16,21,39}
{23,26,37}
{24,28,34}