In the 4 × 4 grid some cells must be painted black.
The numbers to the right of the grid and those below the grid show how many cells in that row or column must be black.
In how many ways can this grid be painted?
Select one option, then click Submit.
4041
4042
4043
4044
4045
Select an option, then submit.
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.
Pink Kangaroo 2021 (2021)
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 →Pink Kangaroo 2021 (2021)