Scarlet Heart Sun is an innovative puzzle game available on Android that challenges players to control a horse piece on a chessboard. The horse can only move in a unique 'sun' pattern, reminiscent of chess rules, requiring players to strategically navigate the board to illuminate all squares. As players progress through the game, they will encounter increasingly complex layouts that test their strategic thinking and problem-solving skills.

Targeted at an adult audience, Scarlet Heart Sun offers a captivating gameplay experience focused on entertainment rather than gambling. Each level presents a new challenge, pushing players to unlock all available stages while utilizing their critical thinking abilities. This free-to-play game combines elements of strategy and logic, making it an engaging choice for puzzle enthusiasts.