Can you place four red trominoes, four green tetrominoes and four blue pentominoes inside an 7x7 grid, such that:
- No two polyominoes overlap
- No two polyominoes of the same color touch each other orthogonally (horizontally or vertically)
Puzzling Stack Exchange is a question and answer site for those who create, solve, and study puzzles. It only takes a minute to sign up.
Sign up to join this communityCan you place four red trominoes, four green tetrominoes and four blue pentominoes inside an 7x7 grid, such that:
An obvious upper bound for the maximum number of distinct shapes is $2+4+4=10$, and...