n: 40 m: 615 packed: 13 density: 0 nodes: 0 solveTime: 64740 buildTime: 210 solved: true
{0,12,32}
{1,20,35}
{2,26,29}
{3,25,39}
{4,6,21}
{5,9,19}
{7,8,17}
{10,27,36}
{11,22,34}
{13,24,31}
{14,23,28}
{15,33,37}
{16,18,30}