n: 40 m: 252 packed: 13 density: 0 nodes: 0 solveTime: 1470 buildTime: 40 solved: true
{0,5,20}
{1,18,22}
{2,26,35}
{3,37,39}
{4,28,32}
{6,9,34}
{7,33,36}
{8,11,29}
{10,30,38}
{12,21,27}
{13,14,16}
{15,23,25}
{17,19,24}