n: 40 m: 262 packed: 13 density: 0 nodes: 0 solveTime: 1140 buildTime: 40 solved: true
{0,15,36}
{1,20,32}
{2,7,16}
{3,25,30}
{4,33,39}
{5,21,31}
{8,13,37}
{9,10,34}
{11,35,38}
{12,14,17}
{18,23,29}
{19,24,28}
{22,26,27}