n: 30 m: 567 packed: 10 density: 0 nodes: 0 solveTime: 53420 buildTime: 190 solved: true {0,4,13} {1,8,24} {2,3,17} {5,20,28} {6,22,23} {7,12,21} {9,11,18} {10,14,29} {15,19,25} {16,26,27}