n: 30 m: 509 packed: 10 density: 0 nodes: 0 solveTime: 23220 buildTime: 150 solved: true
{0,14,21}
{1,4,11}
{2,15,17}
{3,12,19}
{5,10,13}
{6,18,20}
{7,9,22}
{8,23,25}
{16,24,29}
{26,27,28}