“Nine Dots with Four Lines” is a classic puzzle that involves drawing four continuous lines through nine dots arranged in a three-by-three grid without lifting the pen or retracing any lines. The core concept is based on the geometrical principle of extending lines beyond the boundaries of the grid, challenging solvers to think outside the box and adopt problem-solving techniques like lateral thinking and creative exploration. This puzzle encourages spatial reasoning, problem-solving skills, and can be applied in educational settings to teach basic geometry and critical thinking.
