The First Solutions
Chessboard size 52×52
1, 3, 5, 2, 4, 9, 11, 13, 15, 6, 8, 19, 7, 22, 10, 25, 27, 29, 38, 40, 42, 46, 39, 50, 48, 51, 45, 43, 41, 52, 44, 49, 47, 21, 26, 28, 30, 18, 14, 12, 17, 23, 16, 32, 24, 20, 31, 37, 34, 36, 33, 35