n: 40 m: 565 packed: 13 density: 0 nodes: 0 solveTime: 32690 buildTime: 190 solved: true {0,11,25} {1,6,22} {2,3,15} {5,7,12} {8,28,32} {9,14,16} {10,21,36} {13,17,26} {18,31,35} {19,27,34} {20,30,33} {23,37,39} {24,29,38}