n: 30 m: 496 packed: 10 density: 0 nodes: 0 solveTime: 23700 buildTime: 140 solved: true
{0,1,4}
{2,3,9}
{5,12,19}
{6,23,28}
{7,14,21}
{8,10,16}
{11,24,29}
{13,15,25}
{17,18,20}
{22,26,27}