Chess Puzzles
N-Queens & N-Knights — Classic combinatorial challenges
♛
N-Queens MAX
MAX
Place
N
queens on an N×N board so no two queens threaten each other.
♛
N-Queens MIN
MIN
Use the fewest queens possible to threaten every empty square on the board.
♞
N-Knights MAX
MAX
Knight's Tour — visit as many squares as possible without revisiting any.
♞
N-Knights MIN
MIN
Place the fewest knights so that every empty square is attacked by at least one knight.
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High Scores
ALL SIZES 4–12
View your best scores across all four puzzles and every board size.