n: 40 m: 351 packed: 13 density: 0 nodes: 0 solveTime: 6930 buildTime: 70 solved: true
{0,15,37}
{1,10,25}
{2,4,38}
{5,8,22}
{6,11,24}
{7,30,34}
{9,27,29}
{12,16,17}
{13,18,21}
{14,28,35}
{19,33,39}
{20,23,36}
{26,31,32}