n: 40 m: 264 packed: 13 density: 0 nodes: 0 solveTime: 1430 buildTime: 40 solved: true
{0,15,35}
{1,6,39}
{2,21,33}
{3,10,16}
{4,13,26}
{5,17,34}
{7,25,28}
{8,20,29}
{9,12,36}
{11,22,27}
{14,23,37}
{18,32,38}
{19,24,31}