n: 30 m: 143 packed: 10 density: 0 nodes: 0 solveTime: 740 buildTime: 10 solved: true
{0,6,18}
{1,10,16}
{2,4,7}
{3,11,24}
{5,12,13}
{8,19,21}
{9,17,20}
{14,25,29}
{15,22,28}
{23,26,27}