n: 40 m: 429 packed: 13 density: 0 nodes: 0 solveTime: 10890 buildTime: 110 solved: true
{0,10,18}
{1,6,11}
{2,4,9}
{3,8,25}
{7,12,33}
{13,14,30}
{15,34,37}
{16,20,29}
{17,24,31}
{19,21,23}
{22,32,38}
{26,27,28}
{35,36,39}