n: 40 m: 301 packed: 13 density: 0 nodes: 0 solveTime: 3160 buildTime: 60 solved: true
{0,13,19}
{1,4,5}
{2,36,37}
{3,23,29}
{6,28,35}
{7,24,33}
{8,10,39}
{9,18,20}
{11,16,38}
{14,22,27}
{15,17,21}
{25,31,34}
{26,30,32}