3rd puzzle by Dr Harry Wiggins (Complete the grid)
Fill in each space of the grid with one of the numbers 1, 2, . . . , 30, using each number once. For 1 ≤ n ≤ 29, the two spaces containing n and n + 1 must be in either the same row or the same column. Some numbers have been given to you. What will the entries be in the first row of this grid when completed?