Find the hidden tile before time runs out. Test your eyes and your display's calibration.
The grid expands as you level up. Subtle color differences will challenge even professional displays.
This challenge tests your Delta E sensitivity. Professionals can distinguish differences as low as dE 1.0, while untrained eyes often struggle under 3.0.
Low-quality TN panels with poor viewing angles make this game nearly impossible. IPS and OLED panels provide the color accuracy needed for high levels.