n: 40 m: 595 packed: 13 density: 0 nodes: 0 solveTime: 12950 buildTime: 200 solved: true
{0,24,32}
{1,30,39}
{2,5,13}
{4,16,17}
{6,7,10}
{8,12,38}
{9,31,34}
{11,14,19}
{15,25,26}
{18,35,36}
{20,21,33}
{22,23,29}
{27,28,37}