Pentomino is a classic tiling puzzle invented by Solomon Golomb in 1954. Your goal: place every piece so the board is fully covered — no overlaps, no gaps.
Click a piece in the right tray to pick it up.
Press R to rotate the held piece 90°.
Press F to flip the held piece.
Click a cell on the board to place the piece.
Press H for a hint, U to undo, Esc to drop.
There are 12 unique pentominoes — F, I, L, N, P, T, U, V, W, X, Y, Z — each made of exactly 5 squares. Higher tiers use more pieces on bigger boards.