About

Palette 7 is a puzzle with 7 square numbered pieces. The pieces lie inside a 3×3 base, and are also held inside a cross-shaped frame. The top and bottom arms of this cross can hold only 1 piece, and the left and right arms a 2×2 square of pieces. By moving the frame horizontally or vertically, the pieces are moved about the 3×3 square. In the solved position the frame is at the bottom right, with piece 1 on its own in the top row, and below that rows containing 2,3,4 and 5,6, and 7. These puzzles were invented by Douglas A. Engel, who also invented various other puzzles such as: Turnstile/Puzzler Battle Gear Farmland Gear puzzles Palette 21 Palette Mix 4 Slide Rule Duel (Binary Bisection 5) Slide Rule Duel Pentaplenty and Heptalive If your browser supports JavaScript, then you can play Palette 7 by clicking the link below: