n: 30 m: 222 packed: 10 density: 0 nodes: 0 solveTime: 1560 buildTime: 30 solved: true
{0,19,20}
{1,7,15}
{2,8,27}
{3,13,23}
{4,11,29}
{5,12,22}
{6,10,16}
{9,17,28}
{14,18,25}
{21,24,26}