n: 40 m: 462 packed: 13 density: 0 nodes: 0 solveTime: 57990 buildTime: 120 solved: true
{0,18,36}
{1,8,11}
{2,25,34}
{3,4,16}
{5,7,23}
{6,21,35}
{9,12,19}
{10,29,39}
{13,24,38}
{14,15,17}
{20,22,26}
{27,30,33}
{28,31,32}