n: 30 m: 484 packed: 10 density: 0 nodes: 0 solveTime: 22870 buildTime: 130 solved: true
{0,16,20}
{1,17,18}
{2,5,7}
{3,9,13}
{4,8,11}
{6,14,15}
{10,23,25}
{12,19,22}
{21,27,29}
{24,26,28}