n: 40 m: 124 packed: 13 density: 0 nodes: 0 solveTime: 1530 buildTime: 20 solved: true
{0,5,12}
{1,11,14}
{2,4,18}
{3,30,39}
{6,9,19}
{7,16,36}
{10,28,31}
{13,29,32}
{15,20,33}
{17,23,34}
{21,35,37}
{22,24,25}
{26,27,38}