Concentration grids, online or on paper
Find every number in order as fast as you can. It is a simple drill that builds focus, visual scanning and composure under time pressure, used by athletes, students and coaches.
Pick your grid
Start with 10 or 25 for younger players and warm-ups; 100 is the classic full grid.
Two ways to train
Full grid. Find every number from the first to the last and beat your best time.
Sprint. Find as many numbers as you can in 15 seconds to 2 minutes.
Track your progress
Every online run is saved to your history on this device, with your best time for each grid size. Printing instead? Each PDF page has space to write your name, date and time.