Post #227

-------------✯✯✯----------------- ☞ A square medieval castle on a square island is under siege. All around the castle there is a square moat 10 meters wide. Due to a regrettable miscalculation the raiders have brought footbridges, which are only 9.5 meters long. The invaders cannot abandon their campaign and return empty-handed. How can the assailants resolve their predicament? ------------✯✯✯----------------- @BrainyRiddles