n: 30 m: 307 packed: 10 density: 0 nodes: 0 solveTime: 4570 buildTime: 50 solved: true
{0,4,8}
{1,6,10}
{2,19,25}
{3,5,9}
{7,20,27}
{11,12,16}
{13,23,29}
{14,18,26}
{15,17,24}
{21,22,28}