n: 30 m: 381 packed: 10 density: 0 nodes: 0 solveTime: 7170 buildTime: 90 solved: true
{0,2,23}
{1,3,12}
{4,5,6}
{7,10,19}
{8,28,29}
{9,22,26}
{11,13,27}
{14,17,20}
{15,16,21}
{18,24,25}