n: 30 m: 218 packed: 10 density: 0 nodes: 0 solveTime: 900 buildTime: 30 solved: true
{0,18,25}
{1,9,12}
{2,10,26}
{3,6,23}
{4,16,29}
{5,13,17}
{7,11,20}
{8,15,24}
{14,21,22}
{19,27,28}