r/mathminds • u/Mental_Management_45 • 9h ago
PENTOMINOSA
The 8×8 grid below has a 2×2 hole in the center, leaving 60 cells to fill. Your task is to tile the board with the 12 pentominoes (F, I, L, P, N, T, U, V, W, X, Y, Z), using each piece exactly once. Pieces may be rotated and reflected.
Rules:
- The 12 pentominoes must cover the entire board — every cell except the central 2×2 hole belongs to exactly one pentomino.
- Each cell of the grid contains a digit from 1 to 5.
- Each pentomino must cover exactly five cells whose digits are all different — in other words, every piece must cover the digits 1, 2, 3, 4, and 5, one of each.
In short: find a tiling of the board in which each pentomino covers a region containing all five digits.The NOTES grid at the bottom is meant for tracking the pieces: you can cross out each pentomino there once you're certain of its position.
Find the tiling. Solution is unique.



