n: 40 m: 562 packed: 13 density: 0 nodes: 0 solveTime: 59830 buildTime: 180 solved: true
{0,13,29}
{1,19,31}
{2,4,6}
{5,7,11}
{8,12,14}
{9,10,18}
{15,16,17}
{20,23,32}
{21,25,36}
{22,27,33}
{24,28,37}
{26,30,38}
{34,35,39}