Gradient + Mixed + Obstacle Connection

Detailed Description: This set integrates three elements: gradient colors (3 sets), color mixing (2 sets), and obstacle lines (several). It uses a total of 5 basic colors, 2 mixed colors, and 1 gradient color, with 16 endpoints. Players must meet three conditions to complete all connections: “gradient order, mixed association, and avoiding obstacles.” Connections cannot intersect or cross obstacles. There is a 4-minute time limit. After 5 errors, a path hint will be given. Completion earns the “Ultimate Challenge Badge,” suitable for advanced players.