n: 30 m: 481 packed: 10 density: 0 nodes: 0 solveTime: 12920 buildTime: 140 solved: true
{0,19,21}
{1,5,20}
{2,3,10}
{4,12,25}
{6,9,17}
{7,8,11}
{13,26,28}
{14,16,22}
{15,24,27}
{18,23,29}