n: 30 m: 426 packed: 10 density: 0 nodes: 0 solveTime: 8470 buildTime: 110 solved: true
{0,9,13}
{1,4,11}
{2,3,7}
{5,8,14}
{6,15,16}
{10,24,25}
{12,20,27}
{17,23,26}
{18,19,29}
{21,22,28}