In the history of France, a funny story is told about how the Dolphin was saved from an imminent mate while playing chess with the Duke of Burgundy breaking the board on the head and splitting it into eight pieces.
Chess authors often cite this story as an example that it is not always a good policy to play to win and has also given rise to a strong line of attack known as the King's gambit.
The fact that the board was split into eight parts always impressed my youthful fantasy since it seemed possible to extract from it the elements of a relevant problem. The restriction to those eight parts does not give rise to great difficulty or variety, but since I do not feel willing to move away from historical events, I will give our readers a simple problem suitable for the summer.
Show how to gather the eight parts of the drawing to form a perfect 8x8 chess board.
The riddle is simple and serves to teach a valuable rule that must be respected when constructing riddles of this kind.
As there are no two pieces with the same shape, ambiguities are avoided and the solution becomes more difficult.
The following image shows the chess board that the young dolphin broke on the head of the Duke of Burgundy after being restored by the carpenter of the court.