Puzzle 197
What is the minimum number of queens required on a chessboard such that all squares are attacked?
Puzzle 198
Complete this grid with the digits 1 to 6 to make the sum correct.
Perform each mathematical operation in the order shown, from left to right, so 1 + 2 x 3 is treated as (1 + 2) x 3 = 9.
Consecutive numbers are not next to each other, there is no ÷ 1, and at no point is a decimal or a fraction used.

Note: this puzzle is not interactive, and the squares cannot be clicked.
Puzzle 199
Can you complete this sentence using words which are anagrams of each other?
Only the ? students could solve the hard ? equation.
Puzzle 200
Can you find every occurrence of the word LOVE that appears in this grid (horizontally, vertically, or diagonally)?
The hint will reveal the number of times it occurs, but where are they?

Note: this puzzle is not interactive, and the letters cannot be selected.