n: 40 m: 576 packed: 13 density: 0 nodes: 0 solveTime: 29150 buildTime: 190 solved: true
{0,17,26}
{1,14,36}
{2,5,11}
{3,7,15}
{4,6,16}
{8,35,37}
{9,18,33}
{12,27,31}
{13,21,29}
{19,30,32}
{20,28,38}
{22,34,39}
{23,24,25}