n: 40 m: 217 packed: 13 density: 0 nodes: 0 solveTime: 1170 buildTime: 30 solved: true
{0,28,31}
{1,15,36}
{2,10,37}
{3,19,34}
{4,22,25}
{5,20,38}
{6,16,32}
{7,21,35}
{8,24,30}
{9,13,14}
{11,29,33}
{12,26,27}
{18,23,39}