n: 40 m: 503 packed: 13 density: 0 nodes: 0 solveTime: 22740 buildTime: 140 solved: true
{0,1,2}
{3,6,7}
{4,23,28}
{5,16,17}
{8,24,33}
{9,36,38}
{10,14,39}
{11,20,32}
{12,18,35}
{13,22,25}
{15,26,34}
{19,27,29}
{30,31,37}