Painting Squares
Discrete Mathematics
Level
2
How many ways are there to paint a \(3\times3\) grid with three colors such that each row and column has all three distinct colors?
Note: If you rotate the above illustration by \(90^\circ, 180^\circ\) or \(270^\circ\), they each count as different ways to paint the \(3\times3\).
by
Geoff Pilling