n: 30 m: 304 packed: 10 density: 0 nodes: 0 solveTime: 4520 buildTime: 60 solved: true
{0,20,28}
{1,3,4}
{2,17,26}
{5,11,16}
{6,9,10}
{7,12,25}
{8,21,24}
{13,18,27}
{14,22,23}
{15,19,29}