n: 40 m: 592 packed: 13 density: 0 nodes: 0 solveTime: 19160 buildTime: 200 solved: true
{0,17,31}
{1,16,33}
{2,3,4}
{5,8,36}
{6,18,24}
{7,10,13}
{9,29,30}
{11,28,39}
{12,34,37}
{14,21,35}
{15,26,27}
{19,25,38}
{20,23,32}