n: 30 m: 63 packed: 10 density: 0 nodes: 0 solveTime: 80 buildTime: 0 solved: true
{0,7,16}
{1,12,20}
{2,3,26}
{4,27,28}
{5,17,25}
{6,10,13}
{8,9,14}
{11,21,23}
{15,22,29}
{18,19,24}