n: 30 m: 474 packed: 10 density: 0 nodes: 0 solveTime: 10440 buildTime: 130 solved: true
{0,19,28}
{1,4,5}
{2,3,20}
{6,11,12}
{7,13,24}
{8,9,15}
{10,23,26}
{14,17,21}
{16,22,25}
{18,27,29}