n: 40 m: 496 packed: 13 density: 0 nodes: 0 solveTime: 22900 buildTime: 150 solved: true
{0,17,33}
{1,20,29}
{2,16,28}
{3,4,19}
{5,18,23}
{6,10,30}
{7,31,35}
{8,11,24}
{9,27,32}
{12,37,38}
{13,26,34}
{14,21,36}
{15,22,39}