Lessing Build A Wall
To those who dare to take a walk through the local valleys and meadows every once in a while they see a familiar sight: artistically crafted walls that line the sides of many paths - made entirely with stones and without the use of any other means. A few decades ago people used to build walls, stairs, terraces, and even whole houses with stones from the immediate surroundings, most of the time without even using mortar. With Build a wall, everybody can try to build their own straight wall using stones that are not of exact geometrical shape. That's not easy. Next time you go for a wall you'll surely be looking at the old walls with different eyes.
Lessing Build A Wall Puzzle
Building a wall out of differently sized and shaped stones is a real challenge. Especially when the stones have to fit into a given frame. This is the only rule of the wall puzzle - all stones that were in the wall have to fit in there again. Most likely you'll never achieve the same setup again. The wall will look different with every attempt, because each stone can be placed in up to 10 different ways.
How to start: Take all the stones out of the box, set up the frame and start building. Try to keep the gaps as small as possible.