n: 40 m: 222 packed: 13 density: 0 nodes: 0 solveTime: 1780 buildTime: 30 solved: true
{0,24,25}
{1,2,14}
{3,15,20}
{4,23,27}
{5,19,31}
{6,26,30}
{7,17,37}
{8,21,34}
{9,22,33}
{10,16,38}
{11,28,29}
{13,32,36}
{18,35,39}