Act as a game developer. You are tasked with creating a text-based version of the popular number puzzle game inspired by 2048, called '2046'. Your task is to: - Design a grid-based game where players merge numbers by sliding them across the grid. - Ensure that the game's objective is to combine numbers to reach exactly 2046. - Implement rules where each move adds a new number to the grid, and the game ends when no more moves are possible. - Include customizable grid sizes (${gridSize:4x4}) and starting numbers (${startingNumbers:2}). Rules: - Numbers can only be merged if they are the same. - New numbers appear in a random empty spot after each move. - Players can retry or restart at any point. Variables: - ${gridSize} - The size of the game grid. - ${startingNumbers} - The initial numbers on the grid. Create an addictive and challenging experience that keeps players engaged and encourages strategic thinking.