n: 40 m: 323 packed: 13 density: 0 nodes: 0 solveTime: 15050 buildTime: 60 solved: true
{0,7,17}
{1,2,20}
{3,5,11}
{4,10,23}
{6,27,31}
{8,13,37}
{9,12,36}
{14,24,28}
{15,30,38}
{16,22,32}
{18,25,35}
{19,29,34}
{21,26,33}