n: 30 m: 455 packed: 10 density: 0 nodes: 0 solveTime: 30230 buildTime: 120 solved: true
{0,4,18}
{1,19,23}
{2,10,28}
{3,5,17}
{6,9,14}
{7,24,25}
{8,15,16}
{11,12,21}
{13,20,29}
{22,26,27}