Tap the numbers or letters on the grid in ascending order (1→2→3… or A→B→C…) as fast as you can. Choose the grid size and mode (numbers or letters). Start the timer and then tap the tiles in sequence. Correct taps turn green and lock; incorrect taps flash red. The timer stops when you tap the last tile and displays your completed time. Challenge yourself and beat your best record! This game trains focus, visual perception and cognitive agility, making it perfect for brain training. Practice every day to improve your speed and concentration. Enjoy the challenge!