n: 40 m: 224 packed: 13 density: 0 nodes: 0 solveTime: 2170 buildTime: 30 solved: true
{0,20,37}
{1,9,32}
{2,12,30}
{3,25,28}
{4,16,26}
{5,24,38}
{6,22,35}
{7,8,19}
{10,17,31}
{11,13,23}
{14,18,33}
{15,27,34}
{21,29,39}