n: 30 m: 172 packed: 10 density: 0 nodes: 0 solveTime: 280 buildTime: 20 solved: true
{0,9,25}
{1,4,20}
{2,8,18}
{3,11,12}
{5,6,7}
{10,16,17}
{13,22,26}
{14,19,28}
{15,21,24}
{23,27,29}