🧩 Pentomino

Fill an 8×8 board (with a 2×2 hole) using all 12 pentomino pieces.

A.K.A.

Also known as: Pentominoes, Polyomino Puzzle, Solomon Golomb's Pentominoes

Category

Spatial Puzzles

How to Play

1. Drag pentomino pieces from the tray onto the board
2. Click the rotate button (↻) to change a piece's orientation before placing
3. Each piece can be rotated and flipped to fit
4. Fill all 60 playable cells (avoiding the 2×2 hole)
5. Use all 12 pieces exactly once

The 12 Pentominoes

Each pentomino is made of 5 connected squares, named after letters they resemble:

F, I, L, N, P, T, U, V, W, X, Y, Z

Controls

• Drag: Move pieces from tray to board
• ↻ Button: Rotate/flip piece in tray
• ✕ Button: Remove placed piece from board

Puzzle Source

📦 Dataset

Puzzles are loaded from a pre-computed dataset of valid solutions.

Source: mlepage/pentomino-solver License: MIT

Tips & Strategy

• Start with the more awkwardly shaped pieces (F, N, W, Z)
• Save flexible pieces (I, L, Y) for filling gaps later
• The X piece (plus shape) is very constrained - place it strategically
• Pay attention to the hole location - it affects which pieces fit nearby
• If stuck, try removing the last few pieces and trying different arrangements

Historical Note

Pentominoes were extensively studied by mathematician Solomon Golomb, who popularized them in his 1965 book "Polyominoes." The 8×8 board with 2×2 hole is a classic puzzle configuration.

Issues & Bugs

🔍 Search existing issues for "Pentomino"

📝 Report a new bug

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Part of the Enigma puzzle collection