n: 40 m: 278 packed: 13 density: 0 nodes: 0 solveTime: 1140 buildTime: 40 solved: true
{0,21,24}
{1,26,32}
{2,25,33}
{3,28,35}
{4,16,34}
{5,9,15}
{6,8,17}
{7,23,31}
{10,18,20}
{11,14,39}
{12,29,37}
{13,19,36}
{22,30,38}