n: 40 m: 695 packed: 13 density: 0 nodes: 0 solveTime: 76680 buildTime: 280 solved: true
{0,19,32}
{1,12,38}
{2,4,29}
{3,6,8}
{5,27,28}
{7,11,30}
{9,14,33}
{10,17,35}
{13,24,34}
{15,21,22}
{16,25,39}
{18,20,23}
{26,36,37}