n: 30 m: 538 packed: 10 density: 0 nodes: 0 solveTime: 22760 buildTime: 180 solved: true
{0,9,19}
{1,6,7}
{2,5,13}
{3,4,23}
{8,27,29}
{10,20,25}
{11,22,28}
{12,17,26}
{14,16,21}
{15,18,24}