About

Palette 21 is a wooden puzzle with 21 square pieces. The pieces lie inside a 5×5 base, and are also held inside a cross-shaped frame. The arms of this cross are three pieces wide and 2 pieces long. By moving the frame horizontally or vertically, the pieces are moved about the 5×5 square. In the solved position the frame is at the bottom right, the top arm of the cross has six green pieces, the left arm has six blue pieces, and the centre has the nine red pieces. This puzzle were invented by Douglas A. Engel, who also invented various other puzzles such as: Turnstile/Puzzler Battle Gear Farmland Gear puzzles Palette 7 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 21 by clicking the link below: