n: 40 m: 317 packed: 13 density: 0 nodes: 0 solveTime: 5370 buildTime: 60 solved: true
{0,10,21}
{1,6,14}
{2,3,22}
{4,24,32}
{5,16,25}
{7,11,34}
{8,12,26}
{9,20,31}
{13,23,39}
{15,36,37}
{17,28,38}
{18,30,33}
{19,27,29}