Can you place 14 black and 14 white knights on a standard 8x8 chessboard so that each knight attacks exactly 3 opponent knights?
Bonus: can you do it with 15 black and 15 white knights?
Click a square to cycle empty -> white -> black -> empty. Place 14 or 15 white and 14 or 15 black knights so each attacks exactly 3 opponent pieces.
Sign in or create an account to reveal answers, view the solution, and save your progress. Create a free account to unlock practice and keep track of your work.
One puzzle per day. Cryptarithm, Magic Square, Summit. No sign-up required to play.
Play daily puzzle →Interactive problems and curated lessons—water pouring, magic squares, knight's tour, and more.
Browse library →See how you rank. Top solvers by problems solved correctly. Sign in to climb the ranks.
View leaderboard →