n: 30 m: 281 packed: 10 density: 0 nodes: 0 solveTime: 1110 buildTime: 50 solved: true
{0,7,20}
{1,19,27}
{2,17,29}
{3,4,6}
{5,11,21}
{8,25,28}
{9,14,15}
{10,22,26}
{12,16,18}
{13,23,24}