The most difficult puzzle I have designed. The puzzle consists of 15 pieces. Some pieces can be slid under the edge. Goal: Make the numbers 1 to 9 from left to right in the frame There are different possibilities. But there is only one possibility to slide to a magic square. The numbers are engraved in the pieces. Material acrylic.If you carefully open the puzzle (press the bottom of the title square piece) you will see a 4. Remember that.
A puzzle from 1898. Copy of "Le Fermier Avisé" from "The book of ingenious & diabolical puzzles", Jerry Slocum and Jack Botermans Place the 9 cardboard pieces in a square of 3 x 3 pieces. Where 2 numbers lie against each other, the sum must always be the same. So: In each square cage the same number of chicks. To make the puzzle more beautiful I made adjustments,