n: 30 m: 475 packed: 10 density: 0 nodes: 0 solveTime: 18530 buildTime: 140 solved: true
{0,4,9}
{1,14,23}
{2,22,28}
{3,16,18}
{5,10,17}
{6,12,20}
{7,8,13}
{11,15,26}
{19,25,29}
{21,24,27}