n: 30 m: 463 packed: 10 density: 0 nodes: 0 solveTime: 34300 buildTime: 130 solved: true
{0,13,23}
{1,24,25}
{2,3,15}
{4,6,14}
{5,7,8}
{9,11,20}
{10,16,18}
{12,17,26}
{19,22,28}
{21,27,29}