n: 40 m: 427 packed: 13 density: 0 nodes: 0 solveTime: 23670 buildTime: 110 solved: true
{0,23,32}
{1,3,8}
{2,18,24}
{4,14,37}
{5,16,19}
{6,15,27}
{7,21,22}
{9,13,20}
{10,31,38}
{11,17,34}
{12,33,35}
{26,36,39}
{28,29,30}